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Finding the Fourth Proportional to 472,483.80, 708,272.10 and 156,778.20

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Solution

The fourth proportional to 472,483.80, 708,272.10 and 156,778.20 is: 235,016.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,483.80 : 708,272.10 = 156,778.20 : x
  2. Step 2: Convert to fraction form
    472,483.80/708,272.10 = 156,778.20/x
  3. Step 3: Cross multiply
    472,483.80x = 708,272.10 × 156,778.20
  4. Step 4: Simplify right side
    472,483.80x = 111,041,624,948.22
  5. Step 5: Solve for x
    x = 111,041,624,948.22/472,483.80
  6. Step 6: Final answer
    x = 235,016.79

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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.