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Finding the Fourth Proportional to 317,370.70, 437,971.53 and 181,407.55

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Solution

The fourth proportional to 317,370.70, 437,971.53 and 181,407.55 is: 250,342.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,370.70 : 437,971.53 = 181,407.55 : x
  2. Step 2: Convert to fraction form
    317,370.70/437,971.53 = 181,407.55/x
  3. Step 3: Cross multiply
    317,370.70x = 437,971.53 × 181,407.55
  4. Step 4: Simplify right side
    317,370.70x = 79,451,342,227.05
  5. Step 5: Solve for x
    x = 79,451,342,227.05/317,370.70
  6. Step 6: Final answer
    x = 250,342.40

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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.