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Finding the Fourth Proportional to 577,459,979.20, 866,402,545.20 and 189,295,472.80

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Solution

The fourth proportional to 577,459,979.20, 866,402,545.20 and 189,295,472.80 is: 284,012,893.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,459,979.20 : 866,402,545.20 = 189,295,472.80 : x
  2. Step 2: Convert to fraction form
    577,459,979.20/866,402,545.20 = 189,295,472.80/x
  3. Step 3: Cross multiply
    577,459,979.20x = 866,402,545.20 × 189,295,472.80
  4. Step 4: Simplify right side
    577,459,979.20x = 164,006,079,428,757,376
  5. Step 5: Solve for x
    x = 164,006,079,428,757,376/577,459,979.20
  6. Step 6: Final answer
    x = 284,012,893.25

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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.