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Finding the Fourth Proportional to 495,261.70, 742,892.55 and 465,737.20

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Solution

The fourth proportional to 495,261.70, 742,892.55 and 465,737.20 is: 698,605.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,261.70 : 742,892.55 = 465,737.20 : x
  2. Step 2: Convert to fraction form
    495,261.70/742,892.55 = 465,737.20/x
  3. Step 3: Cross multiply
    495,261.70x = 742,892.55 × 465,737.20
  4. Step 4: Simplify right side
    495,261.70x = 345,992,696,137.86
  5. Step 5: Solve for x
    x = 345,992,696,137.86/495,261.70
  6. Step 6: Final answer
    x = 698,605.80

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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.