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Finding the Fourth Proportional to 527,999.40, 791,804.70 and 261,671.40

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Solution

The fourth proportional to 527,999.40, 791,804.70 and 261,671.40 is: 392,410.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,999.40 : 791,804.70 = 261,671.40 : x
  2. Step 2: Convert to fraction form
    527,999.40/791,804.70 = 261,671.40/x
  3. Step 3: Cross multiply
    527,999.40x = 791,804.70 × 261,671.40
  4. Step 4: Simplify right side
    527,999.40x = 207,192,644,375.58
  5. Step 5: Solve for x
    x = 207,192,644,375.58/527,999.40
  6. Step 6: Final answer
    x = 392,410.76

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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.