Home / 513,205.20-769,587.62-176,279.76

Finding the Fourth Proportional to 513,205.20, 769,587.62 and 176,279.76

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Solution

The fourth proportional to 513,205.20, 769,587.62 and 176,279.76 is: 264,344.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,205.20 : 769,587.62 = 176,279.76 : x
  2. Step 2: Convert to fraction form
    513,205.20/769,587.62 = 176,279.76/x
  3. Step 3: Cross multiply
    513,205.20x = 769,587.62 × 176,279.76
  4. Step 4: Simplify right side
    513,205.20x = 135,662,720,071.17
  5. Step 5: Solve for x
    x = 135,662,720,071.17/513,205.20
  6. Step 6: Final answer
    x = 264,344.01

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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.