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Finding the Fourth Proportional to 353,145.60, 530,332.80 and 187,257.60

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Solution

The fourth proportional to 353,145.60, 530,332.80 and 187,257.60 is: 281,212.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,145.60 : 530,332.80 = 187,257.60 : x
  2. Step 2: Convert to fraction form
    353,145.60/530,332.80 = 187,257.60/x
  3. Step 3: Cross multiply
    353,145.60x = 530,332.80 × 187,257.60
  4. Step 4: Simplify right side
    353,145.60x = 99,308,847,329.28
  5. Step 5: Solve for x
    x = 99,308,847,329.28/353,145.60
  6. Step 6: Final answer
    x = 281,212.19

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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.