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Finding the Fourth Proportional to 403,422.20, 604,211.70 and 237,534.20

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Solution

The fourth proportional to 403,422.20, 604,211.70 and 237,534.20 is: 355,758.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,422.20 : 604,211.70 = 237,534.20 : x
  2. Step 2: Convert to fraction form
    403,422.20/604,211.70 = 237,534.20/x
  3. Step 3: Cross multiply
    403,422.20x = 604,211.70 × 237,534.20
  4. Step 4: Simplify right side
    403,422.20x = 143,520,942,790.14
  5. Step 5: Solve for x
    x = 143,520,942,790.14/403,422.20
  6. Step 6: Final answer
    x = 355,758.66

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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.