Home / 527,475.78-791,202.60-128,118.51

Finding the Fourth Proportional to 527,475.78, 791,202.60 and 128,118.51

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Solution

The fourth proportional to 527,475.78, 791,202.60 and 128,118.51 is: 192,175.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,475.78 : 791,202.60 = 128,118.51 : x
  2. Step 2: Convert to fraction form
    527,475.78/791,202.60 = 128,118.51/x
  3. Step 3: Cross multiply
    527,475.78x = 791,202.60 × 128,118.51
  4. Step 4: Simplify right side
    527,475.78x = 101,367,698,220.13
  5. Step 5: Solve for x
    x = 101,367,698,220.13/527,475.78
  6. Step 6: Final answer
    x = 192,175.08

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.