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Finding the Fourth Proportional to 616,403.20, 924,021.60 and 363,877.60

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Solution

The fourth proportional to 616,403.20, 924,021.60 and 363,877.60 is: 545,472.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,403.20 : 924,021.60 = 363,877.60 : x
  2. Step 2: Convert to fraction form
    616,403.20/924,021.60 = 363,877.60/x
  3. Step 3: Cross multiply
    616,403.20x = 924,021.60 × 363,877.60
  4. Step 4: Simplify right side
    616,403.20x = 336,230,762,156.16
  5. Step 5: Solve for x
    x = 336,230,762,156.16/616,403.20
  6. Step 6: Final answer
    x = 545,472.12

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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.