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Finding the Fourth Proportional to 312,180.80, 466,888.80 and 262,414.40

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Solution

The fourth proportional to 312,180.80, 466,888.80 and 262,414.40 is: 392,459.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,180.80 : 466,888.80 = 262,414.40 : x
  2. Step 2: Convert to fraction form
    312,180.80/466,888.80 = 262,414.40/x
  3. Step 3: Cross multiply
    312,180.80x = 466,888.80 × 262,414.40
  4. Step 4: Simplify right side
    312,180.80x = 122,518,344,318.72
  5. Step 5: Solve for x
    x = 122,518,344,318.72/312,180.80
  6. Step 6: Final answer
    x = 392,459.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.