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Finding the Fourth Proportional to 338,687.40, 467,439.71 and 216,232.10

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Solution

The fourth proportional to 338,687.40, 467,439.71 and 216,232.10 is: 298,432.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,687.40 : 467,439.71 = 216,232.10 : x
  2. Step 2: Convert to fraction form
    338,687.40/467,439.71 = 216,232.10/x
  3. Step 3: Cross multiply
    338,687.40x = 467,439.71 × 216,232.10
  4. Step 4: Simplify right side
    338,687.40x = 101,075,466,698.33
  5. Step 5: Solve for x
    x = 101,075,466,698.33/338,687.40
  6. Step 6: Final answer
    x = 298,432.91

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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.