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Finding the Fourth Proportional to 624,858.24, 862,305.18 and 338,378.76

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Solution

The fourth proportional to 624,858.24, 862,305.18 and 338,378.76 is: 466,963.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,858.24 : 862,305.18 = 338,378.76 : x
  2. Step 2: Convert to fraction form
    624,858.24/862,305.18 = 338,378.76/x
  3. Step 3: Cross multiply
    624,858.24x = 862,305.18 × 338,378.76
  4. Step 4: Simplify right side
    624,858.24x = 291,785,757,549.98
  5. Step 5: Solve for x
    x = 291,785,757,549.98/624,858.24
  6. Step 6: Final answer
    x = 466,963.13

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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.