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Finding the Fourth Proportional to 315,104.80, 473,002.80 and 196,909.60

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Solution

The fourth proportional to 315,104.80, 473,002.80 and 196,909.60 is: 295,580.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,104.80 : 473,002.80 = 196,909.60 : x
  2. Step 2: Convert to fraction form
    315,104.80/473,002.80 = 196,909.60/x
  3. Step 3: Cross multiply
    315,104.80x = 473,002.80 × 196,909.60
  4. Step 4: Simplify right side
    315,104.80x = 93,138,792,146.88
  5. Step 5: Solve for x
    x = 93,138,792,146.88/315,104.80
  6. Step 6: Final answer
    x = 295,580.37

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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.