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Finding the Fourth Proportional to 629,366.40, 869,630.40 and 503,084.16

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Solution

The fourth proportional to 629,366.40, 869,630.40 and 503,084.16 is: 695,139.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,366.40 : 869,630.40 = 503,084.16 : x
  2. Step 2: Convert to fraction form
    629,366.40/869,630.40 = 503,084.16/x
  3. Step 3: Cross multiply
    629,366.40x = 869,630.40 × 503,084.16
  4. Step 4: Simplify right side
    629,366.40x = 437,497,279,294.46
  5. Step 5: Solve for x
    x = 437,497,279,294.46/629,366.40
  6. Step 6: Final answer
    x = 695,139.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.