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Finding the Fourth Proportional to 415,934.40, 623,901.60 and 363,446.40

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Solution

The fourth proportional to 415,934.40, 623,901.60 and 363,446.40 is: 545,169.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,934.40 : 623,901.60 = 363,446.40 : x
  2. Step 2: Convert to fraction form
    415,934.40/623,901.60 = 363,446.40/x
  3. Step 3: Cross multiply
    415,934.40x = 623,901.60 × 363,446.40
  4. Step 4: Simplify right side
    415,934.40x = 226,754,790,474.24
  5. Step 5: Solve for x
    x = 226,754,790,474.24/415,934.40
  6. Step 6: Final answer
    x = 545,169.60

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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.