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Finding the Fourth Proportional to 577,964.30, 866,946.45 and 519,061.10

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Solution

The fourth proportional to 577,964.30, 866,946.45 and 519,061.10 is: 778,591.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,964.30 : 866,946.45 = 519,061.10 : x
  2. Step 2: Convert to fraction form
    577,964.30/866,946.45 = 519,061.10/x
  3. Step 3: Cross multiply
    577,964.30x = 866,946.45 × 519,061.10
  4. Step 4: Simplify right side
    577,964.30x = 449,998,177,978.10
  5. Step 5: Solve for x
    x = 449,998,177,978.10/577,964.30
  6. Step 6: Final answer
    x = 778,591.65

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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.