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Finding the Fourth Proportional to 301,565.70, 416,131.21 and 174,238.56

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Solution

The fourth proportional to 301,565.70, 416,131.21 and 174,238.56 is: 240,432.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    301,565.70 : 416,131.21 = 174,238.56 : x
  2. Step 2: Convert to fraction form
    301,565.70/416,131.21 = 174,238.56/x
  3. Step 3: Cross multiply
    301,565.70x = 416,131.21 × 174,238.56
  4. Step 4: Simplify right side
    301,565.70x = 72,506,099,849.61
  5. Step 5: Solve for x
    x = 72,506,099,849.61/301,565.70
  6. Step 6: Final answer
    x = 240,432.19

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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.