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Finding the Fourth Proportional to 440,156.60, 660,234.90 and 410,413.40

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Solution

The fourth proportional to 440,156.60, 660,234.90 and 410,413.40 is: 615,620.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,156.60 : 660,234.90 = 410,413.40 : x
  2. Step 2: Convert to fraction form
    440,156.60/660,234.90 = 410,413.40/x
  3. Step 3: Cross multiply
    440,156.60x = 660,234.90 × 410,413.40
  4. Step 4: Simplify right side
    440,156.60x = 270,969,250,107.66
  5. Step 5: Solve for x
    x = 270,969,250,107.66/440,156.60
  6. Step 6: Final answer
    x = 615,620.10

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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.