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Finding the Fourth Proportional to 567,069,142.60, 850,603,713.90 and 431,020,246.60

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Solution

The fourth proportional to 567,069,142.60, 850,603,713.90 and 431,020,246.60 is: 646,530,369.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,069,142.60 : 850,603,713.90 = 431,020,246.60 : x
  2. Step 2: Convert to fraction form
    567,069,142.60/850,603,713.90 = 431,020,246.60/x
  3. Step 3: Cross multiply
    567,069,142.60x = 850,603,713.90 × 431,020,246.60
  4. Step 4: Simplify right side
    567,069,142.60x = 366,627,422,524,053,888
  5. Step 5: Solve for x
    x = 366,627,422,524,053,888/567,069,142.60
  6. Step 6: Final answer
    x = 646,530,369.90

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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.