Home / 527,916.30-791,866.21-128,556.39

Finding the Fourth Proportional to 527,916.30, 791,866.21 and 128,556.39

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Solution

The fourth proportional to 527,916.30, 791,866.21 and 128,556.39 is: 192,832.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,916.30 : 791,866.21 = 128,556.39 : x
  2. Step 2: Convert to fraction form
    527,916.30/791,866.21 = 128,556.39/x
  3. Step 3: Cross multiply
    527,916.30x = 791,866.21 × 128,556.39
  4. Step 4: Simplify right side
    527,916.30x = 101,799,461,320.58
  5. Step 5: Solve for x
    x = 101,799,461,320.58/527,916.30
  6. Step 6: Final answer
    x = 192,832.58

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1.5x scale

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.