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Finding the Fourth Proportional to 676,644.80, 933,769.79 and 370,732.78

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Solution

The fourth proportional to 676,644.80, 933,769.79 and 370,732.78 is: 511,611.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    676,644.80 : 933,769.79 = 370,732.78 : x
  2. Step 2: Convert to fraction form
    676,644.80/933,769.79 = 370,732.78/x
  3. Step 3: Cross multiply
    676,644.80x = 933,769.79 × 370,732.78
  4. Step 4: Simplify right side
    676,644.80x = 346,179,072,220.76
  5. Step 5: Solve for x
    x = 346,179,072,220.76/676,644.80
  6. Step 6: Final answer
    x = 511,611.22

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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.