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Finding the Fourth Proportional to 1,889,678.59, 2,835,693.39 and 767,747.59

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Solution

The fourth proportional to 1,889,678.59, 2,835,693.39 and 767,747.59 is: 1,152,098.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,889,678.59 : 2,835,693.39 = 767,747.59 : x
  2. Step 2: Convert to fraction form
    1,889,678.59/2,835,693.39 = 767,747.59/x
  3. Step 3: Cross multiply
    1,889,678.59x = 2,835,693.39 × 767,747.59
  4. Step 4: Simplify right side
    1,889,678.59x = 2,177,096,766,151.43
  5. Step 5: Solve for x
    x = 2,177,096,766,151.43/1,889,678.59
  6. Step 6: Final answer
    x = 1,152,098.97

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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.