Home / 527,454.51-727,887.57-285,738.05

Finding the Fourth Proportional to 527,454.51, 727,887.57 and 285,738.05

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Solution

The fourth proportional to 527,454.51, 727,887.57 and 285,738.05 is: 394,318.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,454.51 : 727,887.57 = 285,738.05 : x
  2. Step 2: Convert to fraction form
    527,454.51/727,887.57 = 285,738.05/x
  3. Step 3: Cross multiply
    527,454.51x = 727,887.57 × 285,738.05
  4. Step 4: Simplify right side
    527,454.51x = 207,985,171,231.60
  5. Step 5: Solve for x
    x = 207,985,171,231.60/527,454.51
  6. Step 6: Final answer
    x = 394,318.69

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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.