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Finding the Fourth Proportional to 366,902.90, 550,354.35 and 260,614.70

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Solution

The fourth proportional to 366,902.90, 550,354.35 and 260,614.70 is: 390,922.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,902.90 : 550,354.35 = 260,614.70 : x
  2. Step 2: Convert to fraction form
    366,902.90/550,354.35 = 260,614.70/x
  3. Step 3: Cross multiply
    366,902.90x = 550,354.35 × 260,614.70
  4. Step 4: Simplify right side
    366,902.90x = 143,430,433,818.95
  5. Step 5: Solve for x
    x = 143,430,433,818.95/366,902.90
  6. Step 6: Final answer
    x = 390,922.05

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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.