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Finding the Fourth Proportional to 472,479.80, 708,266.10 and 156,774.20

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Solution

The fourth proportional to 472,479.80, 708,266.10 and 156,774.20 is: 235,010.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,479.80 : 708,266.10 = 156,774.20 : x
  2. Step 2: Convert to fraction form
    472,479.80/708,266.10 = 156,774.20/x
  3. Step 3: Cross multiply
    472,479.80x = 708,266.10 × 156,774.20
  4. Step 4: Simplify right side
    472,479.80x = 111,037,851,214.62
  5. Step 5: Solve for x
    x = 111,037,851,214.62/472,479.80
  6. Step 6: Final answer
    x = 235,010.79

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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.