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Finding the Fourth Proportional to 546,413.80, 819,620.70 and 476,429.80

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Solution

The fourth proportional to 546,413.80, 819,620.70 and 476,429.80 is: 714,644.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    546,413.80 : 819,620.70 = 476,429.80 : x
  2. Step 2: Convert to fraction form
    546,413.80/819,620.70 = 476,429.80/x
  3. Step 3: Cross multiply
    546,413.80x = 819,620.70 × 476,429.80
  4. Step 4: Simplify right side
    546,413.80x = 390,491,726,176.86
  5. Step 5: Solve for x
    x = 390,491,726,176.86/546,413.80
  6. Step 6: Final answer
    x = 714,644.70

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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.