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Finding the Fourth Proportional to 489,254.80, 733,955.10 and 173,685.28

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Solution

The fourth proportional to 489,254.80, 733,955.10 and 173,685.28 is: 260,553.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,254.80 : 733,955.10 = 173,685.28 : x
  2. Step 2: Convert to fraction form
    489,254.80/733,955.10 = 173,685.28/x
  3. Step 3: Cross multiply
    489,254.80x = 733,955.10 × 173,685.28
  4. Step 4: Simplify right side
    489,254.80x = 127,477,197,050.93
  5. Step 5: Solve for x
    x = 127,477,197,050.93/489,254.80
  6. Step 6: Final answer
    x = 260,553.80

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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.