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Finding the Fourth Proportional to 610,737.32, 842,819.64 and 338,810.60

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Solution

The fourth proportional to 610,737.32, 842,819.64 and 338,810.60 is: 467,559.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,737.32 : 842,819.64 = 338,810.60 : x
  2. Step 2: Convert to fraction form
    610,737.32/842,819.64 = 338,810.60/x
  3. Step 3: Cross multiply
    610,737.32x = 842,819.64 × 338,810.60
  4. Step 4: Simplify right side
    610,737.32x = 285,556,227,920.18
  5. Step 5: Solve for x
    x = 285,556,227,920.18/610,737.32
  6. Step 6: Final answer
    x = 467,559.81

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.