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Finding the Fourth Proportional to 425,417.92, 587,069.16 and 231,827.32

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Solution

The fourth proportional to 425,417.92, 587,069.16 and 231,827.32 is: 319,917.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,417.92 : 587,069.16 = 231,827.32 : x
  2. Step 2: Convert to fraction form
    425,417.92/587,069.16 = 231,827.32/x
  3. Step 3: Cross multiply
    425,417.92x = 587,069.16 × 231,827.32
  4. Step 4: Simplify right side
    425,417.92x = 136,098,670,017.45
  5. Step 5: Solve for x
    x = 136,098,670,017.45/425,417.92
  6. Step 6: Final answer
    x = 319,917.58

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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.