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Finding the Fourth Proportional to 637,972,472.92, 956,958,709.92 and 153,298,280.92

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Solution

The fourth proportional to 637,972,472.92, 956,958,709.92 and 153,298,280.92 is: 229,947,421.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,972,472.92 : 956,958,709.92 = 153,298,280.92 : x
  2. Step 2: Convert to fraction form
    637,972,472.92/956,958,709.92 = 153,298,280.92/x
  3. Step 3: Cross multiply
    637,972,472.92x = 956,958,709.92 × 153,298,280.92
  4. Step 4: Simplify right side
    637,972,472.92x = 146,700,125,142,156,928
  5. Step 5: Solve for x
    x = 146,700,125,142,156,928/637,972,472.92
  6. Step 6: Final answer
    x = 229,947,421.51

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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.