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Finding the Fourth Proportional to 615,625.60, 923,438.40 and 532,681.60

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Solution

The fourth proportional to 615,625.60, 923,438.40 and 532,681.60 is: 799,022.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,625.60 : 923,438.40 = 532,681.60 : x
  2. Step 2: Convert to fraction form
    615,625.60/923,438.40 = 532,681.60/x
  3. Step 3: Cross multiply
    615,625.60x = 923,438.40 × 532,681.60
  4. Step 4: Simplify right side
    615,625.60x = 491,898,644,413.44
  5. Step 5: Solve for x
    x = 491,898,644,413.44/615,625.60
  6. Step 6: Final answer
    x = 799,022.40

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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.