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Finding the Fourth Proportional to 577,369.60, 866,054.40 and 521,382.40

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Solution

The fourth proportional to 577,369.60, 866,054.40 and 521,382.40 is: 782,073.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,369.60 : 866,054.40 = 521,382.40 : x
  2. Step 2: Convert to fraction form
    577,369.60/866,054.40 = 521,382.40/x
  3. Step 3: Cross multiply
    577,369.60x = 866,054.40 × 521,382.40
  4. Step 4: Simplify right side
    577,369.60x = 451,545,521,602.56
  5. Step 5: Solve for x
    x = 451,545,521,602.56/577,369.60
  6. Step 6: Final answer
    x = 782,073.60

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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.