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Finding the Fourth Proportional to 528,540.60, 729,216.36 and 295,933.32

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Solution

The fourth proportional to 528,540.60, 729,216.36 and 295,933.32 is: 408,292.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,540.60 : 729,216.36 = 295,933.32 : x
  2. Step 2: Convert to fraction form
    528,540.60/729,216.36 = 295,933.32/x
  3. Step 3: Cross multiply
    528,540.60x = 729,216.36 × 295,933.32
  4. Step 4: Simplify right side
    528,540.60x = 215,799,418,413.12
  5. Step 5: Solve for x
    x = 215,799,418,413.12/528,540.60
  6. Step 6: Final answer
    x = 408,292.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.