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Finding the Fourth Proportional to 724,896,747.10, 1,087,345,120.65 and 724,896,747.10

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Solution

The fourth proportional to 724,896,747.10, 1,087,345,120.65 and 724,896,747.10 is: 1,087,345,120.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,896,747.10 : 1,087,345,120.65 = 724,896,747.10 : x
  2. Step 2: Convert to fraction form
    724,896,747.10/1,087,345,120.65 = 724,896,747.10/x
  3. Step 3: Cross multiply
    724,896,747.10x = 1,087,345,120.65 × 724,896,747.10
  4. Step 4: Simplify right side
    724,896,747.10x = 788,212,940,934,242,176
  5. Step 5: Solve for x
    x = 788,212,940,934,242,176/724,896,747.10
  6. Step 6: Final answer
    x = 1,087,345,120.65

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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.