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Finding the Fourth Proportional to 527,359.40, 790,844.70 and 261,031.40

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Solution

The fourth proportional to 527,359.40, 790,844.70 and 261,031.40 is: 391,450.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,359.40 : 790,844.70 = 261,031.40 : x
  2. Step 2: Convert to fraction form
    527,359.40/790,844.70 = 261,031.40/x
  3. Step 3: Cross multiply
    527,359.40x = 790,844.70 × 261,031.40
  4. Step 4: Simplify right side
    527,359.40x = 206,435,299,223.58
  5. Step 5: Solve for x
    x = 206,435,299,223.58/527,359.40
  6. Step 6: Final answer
    x = 391,450.88

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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.