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Finding the Fourth Proportional to 625,315.89, 937,974.21 and 439,158.45

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Solution

The fourth proportional to 625,315.89, 937,974.21 and 439,158.45 is: 658,737.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,315.89 : 937,974.21 = 439,158.45 : x
  2. Step 2: Convert to fraction form
    625,315.89/937,974.21 = 439,158.45/x
  3. Step 3: Cross multiply
    625,315.89x = 937,974.21 × 439,158.45
  4. Step 4: Simplify right side
    625,315.89x = 411,919,300,203.58
  5. Step 5: Solve for x
    x = 411,919,300,203.58/625,315.89
  6. Step 6: Final answer
    x = 658,737.94

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1.5x scale

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.