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Finding the Fourth Proportional to 371,874.30, 557,811.45 and 349,712.70

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Solution

The fourth proportional to 371,874.30, 557,811.45 and 349,712.70 is: 524,569.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,874.30 : 557,811.45 = 349,712.70 : x
  2. Step 2: Convert to fraction form
    371,874.30/557,811.45 = 349,712.70/x
  3. Step 3: Cross multiply
    371,874.30x = 557,811.45 × 349,712.70
  4. Step 4: Simplify right side
    371,874.30x = 195,073,748,270.42
  5. Step 5: Solve for x
    x = 195,073,748,270.42/371,874.30
  6. Step 6: Final answer
    x = 524,569.05

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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.