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Finding the Fourth Proportional to 853,117.76, 1,279,200.36 and 536,897

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Solution

The fourth proportional to 853,117.76, 1,279,200.36 and 536,897 is: 805,045.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,117.76 : 1,279,200.36 = 536,897 : x
  2. Step 2: Convert to fraction form
    853,117.76/1,279,200.36 = 536,897/x
  3. Step 3: Cross multiply
    853,117.76x = 1,279,200.36 × 536,897
  4. Step 4: Simplify right side
    853,117.76x = 686,798,835,682.92
  5. Step 5: Solve for x
    x = 686,798,835,682.92/853,117.76
  6. Step 6: Final answer
    x = 805,045.76

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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.