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Finding the Fourth Proportional to 842,717.22, 1,264,069.76 and 337,394.88

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Solution

The fourth proportional to 842,717.22, 1,264,069.76 and 337,394.88 is: 506,089.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    842,717.22 : 1,264,069.76 = 337,394.88 : x
  2. Step 2: Convert to fraction form
    842,717.22/1,264,069.76 = 337,394.88/x
  3. Step 3: Cross multiply
    842,717.22x = 1,264,069.76 × 337,394.88
  4. Step 4: Simplify right side
    842,717.22x = 426,490,663,299.85
  5. Step 5: Solve for x
    x = 426,490,663,299.85/842,717.22
  6. Step 6: Final answer
    x = 506,089.89

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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.