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Finding the Fourth Proportional to 318,351.24, 477,724.50 and 185,290.92

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Solution

The fourth proportional to 318,351.24, 477,724.50 and 185,290.92 is: 278,051.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,351.24 : 477,724.50 = 185,290.92 : x
  2. Step 2: Convert to fraction form
    318,351.24/477,724.50 = 185,290.92/x
  3. Step 3: Cross multiply
    318,351.24x = 477,724.50 × 185,290.92
  4. Step 4: Simplify right side
    318,351.24x = 88,518,012,111.54
  5. Step 5: Solve for x
    x = 88,518,012,111.54/318,351.24
  6. Step 6: Final answer
    x = 278,051.41

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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.