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Finding the Fourth Proportional to 900,561.12, 1,350,843.36 and 368,081.76

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Solution

The fourth proportional to 900,561.12, 1,350,843.36 and 368,081.76 is: 552,123.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    900,561.12 : 1,350,843.36 = 368,081.76 : x
  2. Step 2: Convert to fraction form
    900,561.12/1,350,843.36 = 368,081.76/x
  3. Step 3: Cross multiply
    900,561.12x = 1,350,843.36 × 368,081.76
  4. Step 4: Simplify right side
    900,561.12x = 497,220,801,433.11
  5. Step 5: Solve for x
    x = 497,220,801,433.11/900,561.12
  6. Step 6: Final answer
    x = 552,123.33

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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.