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Finding the Fourth Proportional to 425,293.60, 586,905.72 and 231,700.36

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Solution

The fourth proportional to 425,293.60, 586,905.72 and 231,700.36 is: 319,746.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,293.60 : 586,905.72 = 231,700.36 : x
  2. Step 2: Convert to fraction form
    425,293.60/586,905.72 = 231,700.36/x
  3. Step 3: Cross multiply
    425,293.60x = 586,905.72 × 231,700.36
  4. Step 4: Simplify right side
    425,293.60x = 135,986,266,610.06
  5. Step 5: Solve for x
    x = 135,986,266,610.06/425,293.60
  6. Step 6: Final answer
    x = 319,746.80

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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.