Home / 527,979.90-791,620-190,976.20

Finding the Fourth Proportional to 527,979.90, 791,620 and 190,976.20

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Solution

The fourth proportional to 527,979.90, 791,620 and 190,976.20 is: 286,337.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,979.90 : 791,620 = 190,976.20 : x
  2. Step 2: Convert to fraction form
    527,979.90/791,620 = 190,976.20/x
  3. Step 3: Cross multiply
    527,979.90x = 791,620 × 190,976.20
  4. Step 4: Simplify right side
    527,979.90x = 151,180,579,444
  5. Step 5: Solve for x
    x = 151,180,579,444/527,979.90
  6. Step 6: Final answer
    x = 286,337.76

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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.