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Finding the Fourth Proportional to 350,823.84, 484,135.92 and 189,677.76

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Solution

The fourth proportional to 350,823.84, 484,135.92 and 189,677.76 is: 261,754.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,823.84 : 484,135.92 = 189,677.76 : x
  2. Step 2: Convert to fraction form
    350,823.84/484,135.92 = 189,677.76/x
  3. Step 3: Cross multiply
    350,823.84x = 484,135.92 × 189,677.76
  4. Step 4: Simplify right side
    350,823.84x = 91,829,816,841.14
  5. Step 5: Solve for x
    x = 91,829,816,841.14/350,823.84
  6. Step 6: Final answer
    x = 261,754.78

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1.5x scale

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.