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Finding the Fourth Proportional to 349,413.60, 523,861.20 and 149,570.40

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Solution

The fourth proportional to 349,413.60, 523,861.20 and 149,570.40 is: 224,244.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,413.60 : 523,861.20 = 149,570.40 : x
  2. Step 2: Convert to fraction form
    349,413.60/523,861.20 = 149,570.40/x
  3. Step 3: Cross multiply
    349,413.60x = 523,861.20 × 149,570.40
  4. Step 4: Simplify right side
    349,413.60x = 78,354,129,228.48
  5. Step 5: Solve for x
    x = 78,354,129,228.48/349,413.60
  6. Step 6: Final answer
    x = 224,244.65

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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.