Home / 986,687.77-1,361,629.11-533,978.77

Finding the Fourth Proportional to 986,687.77, 1,361,629.11 and 533,978.77

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Solution

The fourth proportional to 986,687.77, 1,361,629.11 and 533,978.77 is: 736,890.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    986,687.77 : 1,361,629.11 = 533,978.77 : x
  2. Step 2: Convert to fraction form
    986,687.77/1,361,629.11 = 533,978.77/x
  3. Step 3: Cross multiply
    986,687.77x = 1,361,629.11 × 533,978.77
  4. Step 4: Simplify right side
    986,687.77x = 727,081,031,947.50
  5. Step 5: Solve for x
    x = 727,081,031,947.50/986,687.77
  6. Step 6: Final answer
    x = 736,890.69

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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.