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Finding the Fourth Proportional to 1,203,949.88, 1,806,225.53 and 849,655.88

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Solution

The fourth proportional to 1,203,949.88, 1,806,225.53 and 849,655.88 is: 1,274,696.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,203,949.88 : 1,806,225.53 = 849,655.88 : x
  2. Step 2: Convert to fraction form
    1,203,949.88/1,806,225.53 = 849,655.88/x
  3. Step 3: Cross multiply
    1,203,949.88x = 1,806,225.53 × 849,655.88
  4. Step 4: Simplify right side
    1,203,949.88x = 1,534,670,140,443.87
  5. Step 5: Solve for x
    x = 1,534,670,140,443.87/1,203,949.88
  6. Step 6: Final answer
    x = 1,274,696.04

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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.