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Finding the Fourth Proportional to 369,133.80, 551,677.71 and 269,503.80

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Solution

The fourth proportional to 369,133.80, 551,677.71 and 269,503.80 is: 402,778.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,133.80 : 551,677.71 = 269,503.80 : x
  2. Step 2: Convert to fraction form
    369,133.80/551,677.71 = 269,503.80/x
  3. Step 3: Cross multiply
    369,133.80x = 551,677.71 × 269,503.80
  4. Step 4: Simplify right side
    369,133.80x = 148,679,239,220.30
  5. Step 5: Solve for x
    x = 148,679,239,220.30/369,133.80
  6. Step 6: Final answer
    x = 402,778.72

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.