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Finding the Fourth Proportional to 546,620.20, 819,930.30 and 472,892.20

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Solution

The fourth proportional to 546,620.20, 819,930.30 and 472,892.20 is: 709,338.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    546,620.20 : 819,930.30 = 472,892.20 : x
  2. Step 2: Convert to fraction form
    546,620.20/819,930.30 = 472,892.20/x
  3. Step 3: Cross multiply
    546,620.20x = 819,930.30 × 472,892.20
  4. Step 4: Simplify right side
    546,620.20x = 387,738,643,413.66
  5. Step 5: Solve for x
    x = 387,738,643,413.66/546,620.20
  6. Step 6: Final answer
    x = 709,338.30

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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.