Home / 654,439.48-981,477.78-414,397.24

Finding the Fourth Proportional to 654,439.48, 981,477.78 and 414,397.24

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Solution

The fourth proportional to 654,439.48, 981,477.78 and 414,397.24 is: 621,480.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,439.48 : 981,477.78 = 414,397.24 : x
  2. Step 2: Convert to fraction form
    654,439.48/981,477.78 = 414,397.24/x
  3. Step 3: Cross multiply
    654,439.48x = 981,477.78 × 414,397.24
  4. Step 4: Simplify right side
    654,439.48x = 406,721,683,153.33
  5. Step 5: Solve for x
    x = 406,721,683,153.33/654,439.48
  6. Step 6: Final answer
    x = 621,480.97

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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.