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Finding the Fourth Proportional to 585,502.38, 807,993.28 and 317,230.38

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Solution

The fourth proportional to 585,502.38, 807,993.28 and 317,230.38 is: 437,777.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    585,502.38 : 807,993.28 = 317,230.38 : x
  2. Step 2: Convert to fraction form
    585,502.38/807,993.28 = 317,230.38/x
  3. Step 3: Cross multiply
    585,502.38x = 807,993.28 × 317,230.38
  4. Step 4: Simplify right side
    585,502.38x = 256,320,015,251.85
  5. Step 5: Solve for x
    x = 256,320,015,251.85/585,502.38
  6. Step 6: Final answer
    x = 437,777.92

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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.