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Finding the Fourth Proportional to 312,049.80, 468,337.28 and 292,366.80

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Solution

The fourth proportional to 312,049.80, 468,337.28 and 292,366.80 is: 438,796.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,049.80 : 468,337.28 = 292,366.80 : x
  2. Step 2: Convert to fraction form
    312,049.80/468,337.28 = 292,366.80/x
  3. Step 3: Cross multiply
    312,049.80x = 468,337.28 × 292,366.80
  4. Step 4: Simplify right side
    312,049.80x = 136,926,271,874.30
  5. Step 5: Solve for x
    x = 136,926,271,874.30/312,049.80
  6. Step 6: Final answer
    x = 438,796.22

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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.