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Finding the Fourth Proportional to 649,700.80, 973,514.40 and 543,947.20

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Solution

The fourth proportional to 649,700.80, 973,514.40 and 543,947.20 is: 815,052.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,700.80 : 973,514.40 = 543,947.20 : x
  2. Step 2: Convert to fraction form
    649,700.80/973,514.40 = 543,947.20/x
  3. Step 3: Cross multiply
    649,700.80x = 973,514.40 × 543,947.20
  4. Step 4: Simplify right side
    649,700.80x = 529,540,432,039.68
  5. Step 5: Solve for x
    x = 529,540,432,039.68/649,700.80
  6. Step 6: Final answer
    x = 815,052.76

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Double scale
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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.