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Finding the Fourth Proportional to 530,591.16, 732,215.91 and 288,873.75

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Solution

The fourth proportional to 530,591.16, 732,215.91 and 288,873.75 is: 398,645.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,591.16 : 732,215.91 = 288,873.75 : x
  2. Step 2: Convert to fraction form
    530,591.16/732,215.91 = 288,873.75/x
  3. Step 3: Cross multiply
    530,591.16x = 732,215.91 × 288,873.75
  4. Step 4: Simplify right side
    530,591.16x = 211,517,955,731.36
  5. Step 5: Solve for x
    x = 211,517,955,731.36/530,591.16
  6. Step 6: Final answer
    x = 398,645.83

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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.