Home / 689,463.41-1,034,195.09-216,186.89

Finding the Fourth Proportional to 689,463.41, 1,034,195.09 and 216,186.89

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Solution

The fourth proportional to 689,463.41, 1,034,195.09 and 216,186.89 is: 324,280.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,463.41 : 1,034,195.09 = 216,186.89 : x
  2. Step 2: Convert to fraction form
    689,463.41/1,034,195.09 = 216,186.89/x
  3. Step 3: Cross multiply
    689,463.41x = 1,034,195.09 × 216,186.89
  4. Step 4: Simplify right side
    689,463.41x = 223,579,413,908.46
  5. Step 5: Solve for x
    x = 223,579,413,908.46/689,463.41
  6. Step 6: Final answer
    x = 324,280.32

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Half scale
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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.