Home / 566,100.66-781,207.83-311,456.10

Finding the Fourth Proportional to 566,100.66, 781,207.83 and 311,456.10

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Solution

The fourth proportional to 566,100.66, 781,207.83 and 311,456.10 is: 429,803.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    566,100.66 : 781,207.83 = 311,456.10 : x
  2. Step 2: Convert to fraction form
    566,100.66/781,207.83 = 311,456.10/x
  3. Step 3: Cross multiply
    566,100.66x = 781,207.83 × 311,456.10
  4. Step 4: Simplify right side
    566,100.66x = 243,311,944,021.26
  5. Step 5: Solve for x
    x = 243,311,944,021.26/566,100.66
  6. Step 6: Final answer
    x = 429,803.32

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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.