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Finding the Fourth Proportional to 986,581, 1,361,483 and 533,872

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Solution

The fourth proportional to 986,581, 1,361,483 and 533,872 is: 736,744.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    986,581 : 1,361,483 = 533,872 : x
  2. Step 2: Convert to fraction form
    986,581/1,361,483 = 533,872/x
  3. Step 3: Cross multiply
    986,581x = 1,361,483 × 533,872
  4. Step 4: Simplify right side
    986,581x = 726,857,652,176
  5. Step 5: Solve for x
    x = 726,857,652,176/986,581
  6. Step 6: Final answer
    x = 736,744.02

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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.