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Finding the Fourth Proportional to 514,375.60, 768,434.90 and 332,983.30

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Solution

The fourth proportional to 514,375.60, 768,434.90 and 332,983.30 is: 497,449.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    514,375.60 : 768,434.90 = 332,983.30 : x
  2. Step 2: Convert to fraction form
    514,375.60/768,434.90 = 332,983.30/x
  3. Step 3: Cross multiply
    514,375.60x = 768,434.90 × 332,983.30
  4. Step 4: Simplify right side
    514,375.60x = 255,875,991,174.49
  5. Step 5: Solve for x
    x = 255,875,991,174.49/514,375.60
  6. Step 6: Final answer
    x = 497,449.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.