Home / 863,215.85-1,191,212.19-476,031.20

Finding the Fourth Proportional to 863,215.85, 1,191,212.19 and 476,031.20

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Solution

The fourth proportional to 863,215.85, 1,191,212.19 and 476,031.20 is: 656,908.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    863,215.85 : 1,191,212.19 = 476,031.20 : x
  2. Step 2: Convert to fraction form
    863,215.85/1,191,212.19 = 476,031.20/x
  3. Step 3: Cross multiply
    863,215.85x = 1,191,212.19 × 476,031.20
  4. Step 4: Simplify right side
    863,215.85x = 567,054,162,304.27
  5. Step 5: Solve for x
    x = 567,054,162,304.27/863,215.85
  6. Step 6: Final answer
    x = 656,908.88

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.