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Finding the Fourth Proportional to 572,716.20, 859,074.30 and 572,716.20

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Solution

The fourth proportional to 572,716.20, 859,074.30 and 572,716.20 is: 859,074.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,716.20 : 859,074.30 = 572,716.20 : x
  2. Step 2: Convert to fraction form
    572,716.20/859,074.30 = 572,716.20/x
  3. Step 3: Cross multiply
    572,716.20x = 859,074.30 × 572,716.20
  4. Step 4: Simplify right side
    572,716.20x = 492,005,768,613.66
  5. Step 5: Solve for x
    x = 492,005,768,613.66/572,716.20
  6. Step 6: Final answer
    x = 859,074.30

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Double scale
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Similar ratio
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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.