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Finding the Fourth Proportional to 527,307.92, 790,955.28 and 127,952

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Solution

The fourth proportional to 527,307.92, 790,955.28 and 127,952 is: 191,926.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,307.92 : 790,955.28 = 127,952 : x
  2. Step 2: Convert to fraction form
    527,307.92/790,955.28 = 127,952/x
  3. Step 3: Cross multiply
    527,307.92x = 790,955.28 × 127,952
  4. Step 4: Simplify right side
    527,307.92x = 101,204,309,986.56
  5. Step 5: Solve for x
    x = 101,204,309,986.56/527,307.92
  6. Step 6: Final answer
    x = 191,926.40

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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.