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Finding the Fourth Proportional to 358,876.40, 537,731.40 and 337,881.20

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Solution

The fourth proportional to 358,876.40, 537,731.40 and 337,881.20 is: 506,272.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,876.40 : 537,731.40 = 337,881.20 : x
  2. Step 2: Convert to fraction form
    358,876.40/537,731.40 = 337,881.20/x
  3. Step 3: Cross multiply
    358,876.40x = 537,731.40 × 337,881.20
  4. Step 4: Simplify right side
    358,876.40x = 181,689,330,709.68
  5. Step 5: Solve for x
    x = 181,689,330,709.68/358,876.40
  6. Step 6: Final answer
    x = 506,272.72

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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.