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Finding the Fourth Proportional to 891,214.92, 1,337,172.48 and 392,229

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Solution

The fourth proportional to 891,214.92, 1,337,172.48 and 392,229 is: 588,497.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,214.92 : 1,337,172.48 = 392,229 : x
  2. Step 2: Convert to fraction form
    891,214.92/1,337,172.48 = 392,229/x
  3. Step 3: Cross multiply
    891,214.92x = 1,337,172.48 × 392,229
  4. Step 4: Simplify right side
    891,214.92x = 524,477,824,657.92
  5. Step 5: Solve for x
    x = 524,477,824,657.92/891,214.92
  6. Step 6: Final answer
    x = 588,497.58

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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.