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Finding the Fourth Proportional to 318,377.36, 439,358.40 and 175,134.30

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Solution

The fourth proportional to 318,377.36, 439,358.40 and 175,134.30 is: 241,684.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,377.36 : 439,358.40 = 175,134.30 : x
  2. Step 2: Convert to fraction form
    318,377.36/439,358.40 = 175,134.30/x
  3. Step 3: Cross multiply
    318,377.36x = 439,358.40 × 175,134.30
  4. Step 4: Simplify right side
    318,377.36x = 76,946,725,833.12
  5. Step 5: Solve for x
    x = 76,946,725,833.12/318,377.36
  6. Step 6: Final answer
    x = 241,684.04

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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.