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Finding the Fourth Proportional to 907,715.10, 1,361,572.65 and 624,279.90

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Solution

The fourth proportional to 907,715.10, 1,361,572.65 and 624,279.90 is: 936,419.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    907,715.10 : 1,361,572.65 = 624,279.90 : x
  2. Step 2: Convert to fraction form
    907,715.10/1,361,572.65 = 624,279.90/x
  3. Step 3: Cross multiply
    907,715.10x = 1,361,572.65 × 624,279.90
  4. Step 4: Simplify right side
    907,715.10x = 850,002,437,784.74
  5. Step 5: Solve for x
    x = 850,002,437,784.74/907,715.10
  6. Step 6: Final answer
    x = 936,419.85

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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.