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Finding the Fourth Proportional to 425,568.47, 587,277.27 and 231,978.33

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Solution

The fourth proportional to 425,568.47, 587,277.27 and 231,978.33 is: 320,126.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,568.47 : 587,277.27 = 231,978.33 : x
  2. Step 2: Convert to fraction form
    425,568.47/587,277.27 = 231,978.33/x
  3. Step 3: Cross multiply
    425,568.47x = 587,277.27 × 231,978.33
  4. Step 4: Simplify right side
    425,568.47x = 136,235,600,341.56
  5. Step 5: Solve for x
    x = 136,235,600,341.56/425,568.47
  6. Step 6: Final answer
    x = 320,126.16

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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.