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Finding the Fourth Proportional to 424,537.02, 585,902.54 and 316,920.22

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Solution

The fourth proportional to 424,537.02, 585,902.54 and 316,920.22 is: 437,380.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,537.02 : 585,902.54 = 316,920.22 : x
  2. Step 2: Convert to fraction form
    424,537.02/585,902.54 = 316,920.22/x
  3. Step 3: Cross multiply
    424,537.02x = 585,902.54 × 316,920.22
  4. Step 4: Simplify right side
    424,537.02x = 185,684,361,959.42
  5. Step 5: Solve for x
    x = 185,684,361,959.42/424,537.02
  6. Step 6: Final answer
    x = 437,380.85

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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.