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Finding the Fourth Proportional to 527,675.60, 792,031.80 and 261,736.40

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Solution

The fourth proportional to 527,675.60, 792,031.80 and 261,736.40 is: 392,861.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,675.60 : 792,031.80 = 261,736.40 : x
  2. Step 2: Convert to fraction form
    527,675.60/792,031.80 = 261,736.40/x
  3. Step 3: Cross multiply
    527,675.60x = 792,031.80 × 261,736.40
  4. Step 4: Simplify right side
    527,675.60x = 207,303,552,017.52
  5. Step 5: Solve for x
    x = 207,303,552,017.52/527,675.60
  6. Step 6: Final answer
    x = 392,861.74

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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.