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Finding the Fourth Proportional to 624,836.53, 862,274.87 and 338,356.85

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Solution

The fourth proportional to 624,836.53, 862,274.87 and 338,356.85 is: 466,932.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,836.53 : 862,274.87 = 338,356.85 : x
  2. Step 2: Convert to fraction form
    624,836.53/862,274.87 = 338,356.85/x
  3. Step 3: Cross multiply
    624,836.53x = 862,274.87 × 338,356.85
  4. Step 4: Simplify right side
    624,836.53x = 291,756,604,113.04
  5. Step 5: Solve for x
    x = 291,756,604,113.04/624,836.53
  6. Step 6: Final answer
    x = 466,932.69

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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.