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Finding the Fourth Proportional to 626,449.92, 864,501.92 and 371,852.16

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Solution

The fourth proportional to 626,449.92, 864,501.92 and 371,852.16 is: 513,156.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,449.92 : 864,501.92 = 371,852.16 : x
  2. Step 2: Convert to fraction form
    626,449.92/864,501.92 = 371,852.16/x
  3. Step 3: Cross multiply
    626,449.92x = 864,501.92 × 371,852.16
  4. Step 4: Simplify right side
    626,449.92x = 321,466,906,276.15
  5. Step 5: Solve for x
    x = 321,466,906,276.15/626,449.92
  6. Step 6: Final answer
    x = 513,156.59

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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.