Home / 420,898.11-580,824.68-251,044.35

Finding the Fourth Proportional to 420,898.11, 580,824.68 and 251,044.35

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Solution

The fourth proportional to 420,898.11, 580,824.68 and 251,044.35 is: 346,432.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,898.11 : 580,824.68 = 251,044.35 : x
  2. Step 2: Convert to fraction form
    420,898.11/580,824.68 = 251,044.35/x
  3. Step 3: Cross multiply
    420,898.11x = 580,824.68 × 251,044.35
  4. Step 4: Simplify right side
    420,898.11x = 145,812,752,999.34
  5. Step 5: Solve for x
    x = 145,812,752,999.34/420,898.11
  6. Step 6: Final answer
    x = 346,432.43

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1.5x scale

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.