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Finding the Fourth Proportional to 318,412.76, 439,180.01 and 182,397.08

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Solution

The fourth proportional to 318,412.76, 439,180.01 and 182,397.08 is: 251,576.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,412.76 : 439,180.01 = 182,397.08 : x
  2. Step 2: Convert to fraction form
    318,412.76/439,180.01 = 182,397.08/x
  3. Step 3: Cross multiply
    318,412.76x = 439,180.01 × 182,397.08
  4. Step 4: Simplify right side
    318,412.76x = 80,105,152,594.62
  5. Step 5: Solve for x
    x = 80,105,152,594.62/318,412.76
  6. Step 6: Final answer
    x = 251,576.45

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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.