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Finding the Fourth Proportional to 317,535.66, 476,183.52 and 127,931.76

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Solution

The fourth proportional to 317,535.66, 476,183.52 and 127,931.76 is: 191,849.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,535.66 : 476,183.52 = 127,931.76 : x
  2. Step 2: Convert to fraction form
    317,535.66/476,183.52 = 127,931.76/x
  3. Step 3: Cross multiply
    317,535.66x = 476,183.52 × 127,931.76
  4. Step 4: Simplify right side
    317,535.66x = 60,918,995,796.60
  5. Step 5: Solve for x
    x = 60,918,995,796.60/317,535.66
  6. Step 6: Final answer
    x = 191,849.31

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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.