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Finding the Fourth Proportional to 898,339.20, 1,347,703.20 and 267,316.80

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Solution

The fourth proportional to 898,339.20, 1,347,703.20 and 267,316.80 is: 401,033.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    898,339.20 : 1,347,703.20 = 267,316.80 : x
  2. Step 2: Convert to fraction form
    898,339.20/1,347,703.20 = 267,316.80/x
  3. Step 3: Cross multiply
    898,339.20x = 1,347,703.20 × 267,316.80
  4. Step 4: Simplify right side
    898,339.20x = 360,263,706,773.76
  5. Step 5: Solve for x
    x = 360,263,706,773.76/898,339.20
  6. Step 6: Final answer
    x = 401,033.05

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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.