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Finding the Fourth Proportional to 366,801.10, 550,201.65 and 260,512.90

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Solution

The fourth proportional to 366,801.10, 550,201.65 and 260,512.90 is: 390,769.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,801.10 : 550,201.65 = 260,512.90 : x
  2. Step 2: Convert to fraction form
    366,801.10/550,201.65 = 260,512.90/x
  3. Step 3: Cross multiply
    366,801.10x = 550,201.65 × 260,512.90
  4. Step 4: Simplify right side
    366,801.10x = 143,334,627,426.29
  5. Step 5: Solve for x
    x = 143,334,627,426.29/366,801.10
  6. Step 6: Final answer
    x = 390,769.35

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Similar ratio
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1.5x scale

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.