Home / 1,122,345.14-1,683,517.71-412,065.86

Finding the Fourth Proportional to 1,122,345.14, 1,683,517.71 and 412,065.86

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Solution

The fourth proportional to 1,122,345.14, 1,683,517.71 and 412,065.86 is: 618,098.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,122,345.14 : 1,683,517.71 = 412,065.86 : x
  2. Step 2: Convert to fraction form
    1,122,345.14/1,683,517.71 = 412,065.86/x
  3. Step 3: Cross multiply
    1,122,345.14x = 1,683,517.71 × 412,065.86
  4. Step 4: Simplify right side
    1,122,345.14x = 693,720,172,996.38
  5. Step 5: Solve for x
    x = 693,720,172,996.38/1,122,345.14
  6. Step 6: Final answer
    x = 618,098.79

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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.