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Finding the Fourth Proportional to 676,489.17, 933,570.14 and 386,094.91

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Solution

The fourth proportional to 676,489.17, 933,570.14 and 386,094.91 is: 532,819.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    676,489.17 : 933,570.14 = 386,094.91 : x
  2. Step 2: Convert to fraction form
    676,489.17/933,570.14 = 386,094.91/x
  3. Step 3: Cross multiply
    676,489.17x = 933,570.14 × 386,094.91
  4. Step 4: Simplify right side
    676,489.17x = 360,446,679,181.99
  5. Step 5: Solve for x
    x = 360,446,679,181.99/676,489.17
  6. Step 6: Final answer
    x = 532,819.59

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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.