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Finding the Fourth Proportional to 626,117.52, 864,035.10 and 354,181.08

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Solution

The fourth proportional to 626,117.52, 864,035.10 and 354,181.08 is: 488,765.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,117.52 : 864,035.10 = 354,181.08 : x
  2. Step 2: Convert to fraction form
    626,117.52/864,035.10 = 354,181.08/x
  3. Step 3: Cross multiply
    626,117.52x = 864,035.10 × 354,181.08
  4. Step 4: Simplify right side
    626,117.52x = 306,024,884,875.91
  5. Step 5: Solve for x
    x = 306,024,884,875.91/626,117.52
  6. Step 6: Final answer
    x = 488,765.89

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.