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Finding the Fourth Proportional to 696,909.32, 961,776.82 and 410,620.20

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Solution

The fourth proportional to 696,909.32, 961,776.82 and 410,620.20 is: 566,680.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    696,909.32 : 961,776.82 = 410,620.20 : x
  2. Step 2: Convert to fraction form
    696,909.32/961,776.82 = 410,620.20/x
  3. Step 3: Cross multiply
    696,909.32x = 961,776.82 × 410,620.20
  4. Step 4: Simplify right side
    696,909.32x = 394,924,990,183.76
  5. Step 5: Solve for x
    x = 394,924,990,183.76/696,909.32
  6. Step 6: Final answer
    x = 566,680.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.