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Finding the Fourth Proportional to 531,545.30, 797,420.61 and 171,812.96

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Solution

The fourth proportional to 531,545.30, 797,420.61 and 171,812.96 is: 257,752.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,545.30 : 797,420.61 = 171,812.96 : x
  2. Step 2: Convert to fraction form
    531,545.30/797,420.61 = 171,812.96/x
  3. Step 3: Cross multiply
    531,545.30x = 797,420.61 × 171,812.96
  4. Step 4: Simplify right side
    531,545.30x = 137,007,191,382.00
  5. Step 5: Solve for x
    x = 137,007,191,382.00/531,545.30
  6. Step 6: Final answer
    x = 257,752.62

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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.