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Finding the Fourth Proportional to 580,554.28, 868,965.18 and 435,817

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Solution

The fourth proportional to 580,554.28, 868,965.18 and 435,817 is: 652,324.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    580,554.28 : 868,965.18 = 435,817 : x
  2. Step 2: Convert to fraction form
    580,554.28/868,965.18 = 435,817/x
  3. Step 3: Cross multiply
    580,554.28x = 868,965.18 × 435,817
  4. Step 4: Simplify right side
    580,554.28x = 378,709,797,852.06
  5. Step 5: Solve for x
    x = 378,709,797,852.06/580,554.28
  6. Step 6: Final answer
    x = 652,324.53

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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.