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Finding the Fourth Proportional to 427,711.43, 590,201.71 and 255,595.13

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Solution

The fourth proportional to 427,711.43, 590,201.71 and 255,595.13 is: 352,697.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,711.43 : 590,201.71 = 255,595.13 : x
  2. Step 2: Convert to fraction form
    427,711.43/590,201.71 = 255,595.13/x
  3. Step 3: Cross multiply
    427,711.43x = 590,201.71 × 255,595.13
  4. Step 4: Simplify right side
    427,711.43x = 150,852,681,416.93
  5. Step 5: Solve for x
    x = 150,852,681,416.93/427,711.43
  6. Step 6: Final answer
    x = 352,697.33

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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.