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Finding the Fourth Proportional to 616,089.70, 924,004.95 and 261,115.30

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Solution

The fourth proportional to 616,089.70, 924,004.95 and 261,115.30 is: 391,618.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,089.70 : 924,004.95 = 261,115.30 : x
  2. Step 2: Convert to fraction form
    616,089.70/924,004.95 = 261,115.30/x
  3. Step 3: Cross multiply
    616,089.70x = 924,004.95 × 261,115.30
  4. Step 4: Simplify right side
    616,089.70x = 241,271,829,720.74
  5. Step 5: Solve for x
    x = 241,271,829,720.74/616,089.70
  6. Step 6: Final answer
    x = 391,618.02

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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.