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Finding the Fourth Proportional to 392,754.30, 541,859.67 and 249,546.30

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Solution

The fourth proportional to 392,754.30, 541,859.67 and 249,546.30 is: 344,284.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,754.30 : 541,859.67 = 249,546.30 : x
  2. Step 2: Convert to fraction form
    392,754.30/541,859.67 = 249,546.30/x
  3. Step 3: Cross multiply
    392,754.30x = 541,859.67 × 249,546.30
  4. Step 4: Simplify right side
    392,754.30x = 135,219,075,767.72
  5. Step 5: Solve for x
    x = 135,219,075,767.72/392,754.30
  6. Step 6: Final answer
    x = 344,284.14

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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.