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Finding the Fourth Proportional to 614,841.20, 922,261.80 and 171,609.20

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Solution

The fourth proportional to 614,841.20, 922,261.80 and 171,609.20 is: 257,413.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    614,841.20 : 922,261.80 = 171,609.20 : x
  2. Step 2: Convert to fraction form
    614,841.20/922,261.80 = 171,609.20/x
  3. Step 3: Cross multiply
    614,841.20x = 922,261.80 × 171,609.20
  4. Step 4: Simplify right side
    614,841.20x = 158,268,609,688.56
  5. Step 5: Solve for x
    x = 158,268,609,688.56/614,841.20
  6. Step 6: Final answer
    x = 257,413.80

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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.