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Finding the Fourth Proportional to 1,063,654, 1,595,486.22 and 389,785

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Solution

The fourth proportional to 1,063,654, 1,595,486.22 and 389,785 is: 584,679.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,063,654 : 1,595,486.22 = 389,785 : x
  2. Step 2: Convert to fraction form
    1,063,654/1,595,486.22 = 389,785/x
  3. Step 3: Cross multiply
    1,063,654x = 1,595,486.22 × 389,785
  4. Step 4: Simplify right side
    1,063,654x = 621,896,596,262.70
  5. Step 5: Solve for x
    x = 621,896,596,262.70/1,063,654
  6. Step 6: Final answer
    x = 584,679.41

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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.