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Finding the Fourth Proportional to 314,723.20, 473,251.20 and 263,401.60

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Solution

The fourth proportional to 314,723.20, 473,251.20 and 263,401.60 is: 396,078.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,723.20 : 473,251.20 = 263,401.60 : x
  2. Step 2: Convert to fraction form
    314,723.20/473,251.20 = 263,401.60/x
  3. Step 3: Cross multiply
    314,723.20x = 473,251.20 × 263,401.60
  4. Step 4: Simplify right side
    314,723.20x = 124,655,123,281.92
  5. Step 5: Solve for x
    x = 124,655,123,281.92/314,723.20
  6. Step 6: Final answer
    x = 396,078.60

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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.