Home / 527,628.56-791,437.14-128,269.80

Finding the Fourth Proportional to 527,628.56, 791,437.14 and 128,269.80

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Solution

The fourth proportional to 527,628.56, 791,437.14 and 128,269.80 is: 192,403.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,628.56 : 791,437.14 = 128,269.80 : x
  2. Step 2: Convert to fraction form
    527,628.56/791,437.14 = 128,269.80/x
  3. Step 3: Cross multiply
    527,628.56x = 791,437.14 × 128,269.80
  4. Step 4: Simplify right side
    527,628.56x = 101,517,483,660.37
  5. Step 5: Solve for x
    x = 101,517,483,660.37/527,628.56
  6. Step 6: Final answer
    x = 192,403.31

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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.