Home / 527,647.40-791,460.14-128,290.26

Finding the Fourth Proportional to 527,647.40, 791,460.14 and 128,290.26

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Solution

The fourth proportional to 527,647.40, 791,460.14 and 128,290.26 is: 192,432.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,647.40 : 791,460.14 = 128,290.26 : x
  2. Step 2: Convert to fraction form
    527,647.40/791,460.14 = 128,290.26/x
  3. Step 3: Cross multiply
    527,647.40x = 791,460.14 × 128,290.26
  4. Step 4: Simplify right side
    527,647.40x = 101,536,626,498.79
  5. Step 5: Solve for x
    x = 101,536,626,498.79/527,647.40
  6. Step 6: Final answer
    x = 192,432.73

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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.