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Finding the Fourth Proportional to 452,712.80, 624,707.10 and 261,738.50

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Solution

The fourth proportional to 452,712.80, 624,707.10 and 261,738.50 is: 361,177.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,712.80 : 624,707.10 = 261,738.50 : x
  2. Step 2: Convert to fraction form
    452,712.80/624,707.10 = 261,738.50/x
  3. Step 3: Cross multiply
    452,712.80x = 624,707.10 × 261,738.50
  4. Step 4: Simplify right side
    452,712.80x = 163,509,897,984.66
  5. Step 5: Solve for x
    x = 163,509,897,984.66/452,712.80
  6. Step 6: Final answer
    x = 361,177.99

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.