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Finding the Fourth Proportional to 568,071.80, 852,107.70 and 358,638.20

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Solution

The fourth proportional to 568,071.80, 852,107.70 and 358,638.20 is: 537,957.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,071.80 : 852,107.70 = 358,638.20 : x
  2. Step 2: Convert to fraction form
    568,071.80/852,107.70 = 358,638.20/x
  3. Step 3: Cross multiply
    568,071.80x = 852,107.70 × 358,638.20
  4. Step 4: Simplify right side
    568,071.80x = 305,598,371,734.14
  5. Step 5: Solve for x
    x = 305,598,371,734.14/568,071.80
  6. Step 6: Final answer
    x = 537,957.30

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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.