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Finding the Fourth Proportional to 652,191.90, 978,287.85 and 463,235.10

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Solution

The fourth proportional to 652,191.90, 978,287.85 and 463,235.10 is: 694,852.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    652,191.90 : 978,287.85 = 463,235.10 : x
  2. Step 2: Convert to fraction form
    652,191.90/978,287.85 = 463,235.10/x
  3. Step 3: Cross multiply
    652,191.90x = 978,287.85 × 463,235.10
  4. Step 4: Simplify right side
    652,191.90x = 453,177,270,023.54
  5. Step 5: Solve for x
    x = 453,177,270,023.54/652,191.90
  6. Step 6: Final answer
    x = 694,852.65

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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.