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Finding the Fourth Proportional to 316,735.32, 437,101.78 and 180,766.56

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Solution

The fourth proportional to 316,735.32, 437,101.78 and 180,766.56 is: 249,461.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,735.32 : 437,101.78 = 180,766.56 : x
  2. Step 2: Convert to fraction form
    316,735.32/437,101.78 = 180,766.56/x
  3. Step 3: Cross multiply
    316,735.32x = 437,101.78 × 180,766.56
  4. Step 4: Simplify right side
    316,735.32x = 79,013,385,140.48
  5. Step 5: Solve for x
    x = 79,013,385,140.48/316,735.32
  6. Step 6: Final answer
    x = 249,461.87

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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.