Home / 644,233.71-888,899.36-389,579.43

Finding the Fourth Proportional to 644,233.71, 888,899.36 and 389,579.43

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Solution

The fourth proportional to 644,233.71, 888,899.36 and 389,579.43 is: 537,533.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,233.71 : 888,899.36 = 389,579.43 : x
  2. Step 2: Convert to fraction form
    644,233.71/888,899.36 = 389,579.43/x
  3. Step 3: Cross multiply
    644,233.71x = 888,899.36 × 389,579.43
  4. Step 4: Simplify right side
    644,233.71x = 346,296,904,048.27
  5. Step 5: Solve for x
    x = 346,296,904,048.27/644,233.71
  6. Step 6: Final answer
    x = 537,533.04

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1.5x scale

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.