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Finding the Fourth Proportional to 616,110.30, 924,165.45 and 518,679.45

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Solution

The fourth proportional to 616,110.30, 924,165.45 and 518,679.45 is: 778,019.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,110.30 : 924,165.45 = 518,679.45 : x
  2. Step 2: Convert to fraction form
    616,110.30/924,165.45 = 518,679.45/x
  3. Step 3: Cross multiply
    616,110.30x = 924,165.45 × 518,679.45
  4. Step 4: Simplify right side
    616,110.30x = 479,345,627,315.00
  5. Step 5: Solve for x
    x = 479,345,627,315.00/616,110.30
  6. Step 6: Final answer
    x = 778,019.18

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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.