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Finding the Fourth Proportional to 676,892.30, 934,109.43 and 375,086.30

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Solution

The fourth proportional to 676,892.30, 934,109.43 and 375,086.30 is: 517,618.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    676,892.30 : 934,109.43 = 375,086.30 : x
  2. Step 2: Convert to fraction form
    676,892.30/934,109.43 = 375,086.30/x
  3. Step 3: Cross multiply
    676,892.30x = 934,109.43 × 375,086.30
  4. Step 4: Simplify right side
    676,892.30x = 350,371,649,893.81
  5. Step 5: Solve for x
    x = 350,371,649,893.81/676,892.30
  6. Step 6: Final answer
    x = 517,618.02

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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.