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Finding the Fourth Proportional to 1,021,036,355.85, 1,531,554,533.78 and 1,021,036,355.85

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Solution

The fourth proportional to 1,021,036,355.85, 1,531,554,533.78 and 1,021,036,355.85 is: 1,531,554,533.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,021,036,355.85 : 1,531,554,533.78 = 1,021,036,355.85 : x
  2. Step 2: Convert to fraction form
    1,021,036,355.85/1,531,554,533.78 = 1,021,036,355.85/x
  3. Step 3: Cross multiply
    1,021,036,355.85x = 1,531,554,533.78 × 1,021,036,355.85
  4. Step 4: Simplify right side
    1,021,036,355.85x = 1,563,772,859,951,171,840
  5. Step 5: Solve for x
    x = 1,563,772,859,951,171,840/1,021,036,355.85
  6. Step 6: Final answer
    x = 1,531,554,533.78

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.