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Finding the Fourth Proportional to 1,010,410,669.80, 1,515,616,004.70 and 996,805,780.20

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Solution

The fourth proportional to 1,010,410,669.80, 1,515,616,004.70 and 996,805,780.20 is: 1,495,208,670.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,010,410,669.80 : 1,515,616,004.70 = 996,805,780.20 : x
  2. Step 2: Convert to fraction form
    1,010,410,669.80/1,515,616,004.70 = 996,805,780.20/x
  3. Step 3: Cross multiply
    1,010,410,669.80x = 1,515,616,004.70 × 996,805,780.20
  4. Step 4: Simplify right side
    1,010,410,669.80x = 1,510,774,794,048,590,592
  5. Step 5: Solve for x
    x = 1,510,774,794,048,590,592/1,010,410,669.80
  6. Step 6: Final answer
    x = 1,495,208,670.30

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Double scale
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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.