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Finding the Fourth Proportional to 550,031.40, 825,047.10 and 234,520.20

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Solution

The fourth proportional to 550,031.40, 825,047.10 and 234,520.20 is: 351,780.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,031.40 : 825,047.10 = 234,520.20 : x
  2. Step 2: Convert to fraction form
    550,031.40/825,047.10 = 234,520.20/x
  3. Step 3: Cross multiply
    550,031.40x = 825,047.10 × 234,520.20
  4. Step 4: Simplify right side
    550,031.40x = 193,490,210,901.42
  5. Step 5: Solve for x
    x = 193,490,210,901.42/550,031.40
  6. Step 6: Final answer
    x = 351,780.30

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Double scale
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Similar ratio
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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.