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Finding the Fourth Proportional to 869,556, 1,301,063.76 and 514,737.12

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Solution

The fourth proportional to 869,556, 1,301,063.76 and 514,737.12 is: 770,169.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,556 : 1,301,063.76 = 514,737.12 : x
  2. Step 2: Convert to fraction form
    869,556/1,301,063.76 = 514,737.12/x
  3. Step 3: Cross multiply
    869,556x = 1,301,063.76 × 514,737.12
  4. Step 4: Simplify right side
    869,556x = 669,705,812,758.77
  5. Step 5: Solve for x
    x = 669,705,812,758.77/869,556
  6. Step 6: Final answer
    x = 770,169.85

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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.