Home / 558,784.35-771,138.86-395,732.57

Finding the Fourth Proportional to 558,784.35, 771,138.86 and 395,732.57

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Solution

The fourth proportional to 558,784.35, 771,138.86 and 395,732.57 is: 546,122.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,784.35 : 771,138.86 = 395,732.57 : x
  2. Step 2: Convert to fraction form
    558,784.35/771,138.86 = 395,732.57/x
  3. Step 3: Cross multiply
    558,784.35x = 771,138.86 × 395,732.57
  4. Step 4: Simplify right side
    558,784.35x = 305,164,757,060.31
  5. Step 5: Solve for x
    x = 305,164,757,060.31/558,784.35
  6. Step 6: Final answer
    x = 546,122.59

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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.