Home / 856,528.80-1,181,978.16-493,967.76

Finding the Fourth Proportional to 856,528.80, 1,181,978.16 and 493,967.76

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Solution

The fourth proportional to 856,528.80, 1,181,978.16 and 493,967.76 is: 681,657.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,528.80 : 1,181,978.16 = 493,967.76 : x
  2. Step 2: Convert to fraction form
    856,528.80/1,181,978.16 = 493,967.76/x
  3. Step 3: Cross multiply
    856,528.80x = 1,181,978.16 × 493,967.76
  4. Step 4: Simplify right side
    856,528.80x = 583,859,104,064.12
  5. Step 5: Solve for x
    x = 583,859,104,064.12/856,528.80
  6. Step 6: Final answer
    x = 681,657.29

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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.