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Finding the Fourth Proportional to 437,867.60, 656,801.40 and 157,413.20

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Solution

The fourth proportional to 437,867.60, 656,801.40 and 157,413.20 is: 236,119.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,867.60 : 656,801.40 = 157,413.20 : x
  2. Step 2: Convert to fraction form
    437,867.60/656,801.40 = 157,413.20/x
  3. Step 3: Cross multiply
    437,867.60x = 656,801.40 × 157,413.20
  4. Step 4: Simplify right side
    437,867.60x = 103,389,210,138.48
  5. Step 5: Solve for x
    x = 103,389,210,138.48/437,867.60
  6. Step 6: Final answer
    x = 236,119.80

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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.