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Finding the Fourth Proportional to 1,147,969.92, 1,721,952 and 547,109.76

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Solution

The fourth proportional to 1,147,969.92, 1,721,952 and 547,109.76 is: 820,663.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,147,969.92 : 1,721,952 = 547,109.76 : x
  2. Step 2: Convert to fraction form
    1,147,969.92/1,721,952 = 547,109.76/x
  3. Step 3: Cross multiply
    1,147,969.92x = 1,721,952 × 547,109.76
  4. Step 4: Simplify right side
    1,147,969.92x = 942,096,745,451.52
  5. Step 5: Solve for x
    x = 942,096,745,451.52/1,147,969.92
  6. Step 6: Final answer
    x = 820,663.27

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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.