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Finding the Fourth Proportional to 495,930.90, 743,896.35 and 259,346.10

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Solution

The fourth proportional to 495,930.90, 743,896.35 and 259,346.10 is: 389,019.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,930.90 : 743,896.35 = 259,346.10 : x
  2. Step 2: Convert to fraction form
    495,930.90/743,896.35 = 259,346.10/x
  3. Step 3: Cross multiply
    495,930.90x = 743,896.35 × 259,346.10
  4. Step 4: Simplify right side
    495,930.90x = 192,926,617,176.74
  5. Step 5: Solve for x
    x = 192,926,617,176.74/495,930.90
  6. Step 6: Final answer
    x = 389,019.15

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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.