Home / 644,621.24-888,860.22-440,705.36

Finding the Fourth Proportional to 644,621.24, 888,860.22 and 440,705.36

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Solution

The fourth proportional to 644,621.24, 888,860.22 and 440,705.36 is: 607,683.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,621.24 : 888,860.22 = 440,705.36 : x
  2. Step 2: Convert to fraction form
    644,621.24/888,860.22 = 440,705.36/x
  3. Step 3: Cross multiply
    644,621.24x = 888,860.22 × 440,705.36
  4. Step 4: Simplify right side
    644,621.24x = 391,725,463,244.78
  5. Step 5: Solve for x
    x = 391,725,463,244.78/644,621.24
  6. Step 6: Final answer
    x = 607,683.15

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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.