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Finding the Fourth Proportional to 366,938.45, 550,407.68 and 234,078.20

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Solution

The fourth proportional to 366,938.45, 550,407.68 and 234,078.20 is: 351,117.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,938.45 : 550,407.68 = 234,078.20 : x
  2. Step 2: Convert to fraction form
    366,938.45/550,407.68 = 234,078.20/x
  3. Step 3: Cross multiply
    366,938.45x = 550,407.68 × 234,078.20
  4. Step 4: Simplify right side
    366,938.45x = 128,838,439,000.58
  5. Step 5: Solve for x
    x = 128,838,439,000.58/366,938.45
  6. Step 6: Final answer
    x = 351,117.30

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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.