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Finding the Fourth Proportional to 541,409.80, 812,165.90 and 147,425.80

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Solution

The fourth proportional to 541,409.80, 812,165.90 and 147,425.80 is: 221,152.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    541,409.80 : 812,165.90 = 147,425.80 : x
  2. Step 2: Convert to fraction form
    541,409.80/812,165.90 = 147,425.80/x
  3. Step 3: Cross multiply
    541,409.80x = 812,165.90 × 147,425.80
  4. Step 4: Simplify right side
    541,409.80x = 119,734,207,540.22
  5. Step 5: Solve for x
    x = 119,734,207,540.22/541,409.80
  6. Step 6: Final answer
    x = 221,152.64

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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.