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Finding the Fourth Proportional to 1,057,647,411.55, 1,482,236,926.25 and 1,057,647,411.55

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Solution

The fourth proportional to 1,057,647,411.55, 1,482,236,926.25 and 1,057,647,411.55 is: 1,482,236,926.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,057,647,411.55 : 1,482,236,926.25 = 1,057,647,411.55 : x
  2. Step 2: Convert to fraction form
    1,057,647,411.55/1,482,236,926.25 = 1,057,647,411.55/x
  3. Step 3: Cross multiply
    1,057,647,411.55x = 1,482,236,926.25 × 1,057,647,411.55
  4. Step 4: Simplify right side
    1,057,647,411.55x = 1,567,684,048,352,140,800
  5. Step 5: Solve for x
    x = 1,567,684,048,352,140,800/1,057,647,411.55
  6. Step 6: Final answer
    x = 1,482,236,926.25

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.