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Finding the Fourth Proportional to 325,045.80, 487,568.70 and 272,557.80

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Solution

The fourth proportional to 325,045.80, 487,568.70 and 272,557.80 is: 408,836.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,045.80 : 487,568.70 = 272,557.80 : x
  2. Step 2: Convert to fraction form
    325,045.80/487,568.70 = 272,557.80/x
  3. Step 3: Cross multiply
    325,045.80x = 487,568.70 × 272,557.80
  4. Step 4: Simplify right side
    325,045.80x = 132,890,652,220.86
  5. Step 5: Solve for x
    x = 132,890,652,220.86/325,045.80
  6. Step 6: Final answer
    x = 408,836.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.