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Finding the Fourth Proportional to 341,443.20, 512,456.40 and 152,194.80

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Solution

The fourth proportional to 341,443.20, 512,456.40 and 152,194.80 is: 228,422.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,443.20 : 512,456.40 = 152,194.80 : x
  2. Step 2: Convert to fraction form
    341,443.20/512,456.40 = 152,194.80/x
  3. Step 3: Cross multiply
    341,443.20x = 512,456.40 × 152,194.80
  4. Step 4: Simplify right side
    341,443.20x = 77,993,199,306.72
  5. Step 5: Solve for x
    x = 77,993,199,306.72/341,443.20
  6. Step 6: Final answer
    x = 228,422.18

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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.