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Finding the Fourth Proportional to 408,066.90, 610,717.95 and 408,066.90

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Solution

The fourth proportional to 408,066.90, 610,717.95 and 408,066.90 is: 610,717.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,066.90 : 610,717.95 = 408,066.90 : x
  2. Step 2: Convert to fraction form
    408,066.90/610,717.95 = 408,066.90/x
  3. Step 3: Cross multiply
    408,066.90x = 610,717.95 × 408,066.90
  4. Step 4: Simplify right side
    408,066.90x = 249,213,780,630.86
  5. Step 5: Solve for x
    x = 249,213,780,630.86/408,066.90
  6. Step 6: Final answer
    x = 610,717.95

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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.