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Finding the Fourth Proportional to 317,404.32, 437,472.50 and 302,456.18

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Solution

The fourth proportional to 317,404.32, 437,472.50 and 302,456.18 is: 416,869.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,404.32 : 437,472.50 = 302,456.18 : x
  2. Step 2: Convert to fraction form
    317,404.32/437,472.50 = 302,456.18/x
  3. Step 3: Cross multiply
    317,404.32x = 437,472.50 × 302,456.18
  4. Step 4: Simplify right side
    317,404.32x = 132,316,261,205.05
  5. Step 5: Solve for x
    x = 132,316,261,205.05/317,404.32
  6. Step 6: Final answer
    x = 416,869.76

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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.