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Finding the Fourth Proportional to 489,698.55, 733,679.55 and 417,892.66

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Solution

The fourth proportional to 489,698.55, 733,679.55 and 417,892.66 is: 626,098.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,698.55 : 733,679.55 = 417,892.66 : x
  2. Step 2: Convert to fraction form
    489,698.55/733,679.55 = 417,892.66/x
  3. Step 3: Cross multiply
    489,698.55x = 733,679.55 × 417,892.66
  4. Step 4: Simplify right side
    489,698.55x = 306,599,298,737.10
  5. Step 5: Solve for x
    x = 306,599,298,737.10/489,698.55
  6. Step 6: Final answer
    x = 626,098.03

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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.