Home / 420,925.02-580,874.22-229,937.04

Finding the Fourth Proportional to 420,925.02, 580,874.22 and 229,937.04

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Solution

The fourth proportional to 420,925.02, 580,874.22 and 229,937.04 is: 317,311.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,925.02 : 580,874.22 = 229,937.04 : x
  2. Step 2: Convert to fraction form
    420,925.02/580,874.22 = 229,937.04/x
  3. Step 3: Cross multiply
    420,925.02x = 580,874.22 × 229,937.04
  4. Step 4: Simplify right side
    420,925.02x = 133,564,498,759.11
  5. Step 5: Solve for x
    x = 133,564,498,759.11/420,925.02
  6. Step 6: Final answer
    x = 317,311.85

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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.