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Finding the Fourth Proportional to 527,352.40, 790,834.20 and 261,024.40

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Solution

The fourth proportional to 527,352.40, 790,834.20 and 261,024.40 is: 391,440.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,352.40 : 790,834.20 = 261,024.40 : x
  2. Step 2: Convert to fraction form
    527,352.40/790,834.20 = 261,024.40/x
  3. Step 3: Cross multiply
    527,352.40x = 790,834.20 × 261,024.40
  4. Step 4: Simplify right side
    527,352.40x = 206,427,022,554.48
  5. Step 5: Solve for x
    x = 206,427,022,554.48/527,352.40
  6. Step 6: Final answer
    x = 391,440.38

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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.