Home / 656,422.69-984,634.04-207,178.51

Finding the Fourth Proportional to 656,422.69, 984,634.04 and 207,178.51

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Solution

The fourth proportional to 656,422.69, 984,634.04 and 207,178.51 is: 310,767.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,422.69 : 984,634.04 = 207,178.51 : x
  2. Step 2: Convert to fraction form
    656,422.69/984,634.04 = 207,178.51/x
  3. Step 3: Cross multiply
    656,422.69x = 984,634.04 × 207,178.51
  4. Step 4: Simplify right side
    656,422.69x = 203,995,013,302.48
  5. Step 5: Solve for x
    x = 203,995,013,302.48/656,422.69
  6. Step 6: Final answer
    x = 310,767.77

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Double scale
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Similar ratio
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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.