Home / 644,592.24-888,820.20-440,676.36

Finding the Fourth Proportional to 644,592.24, 888,820.20 and 440,676.36

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Solution

The fourth proportional to 644,592.24, 888,820.20 and 440,676.36 is: 607,643.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,592.24 : 888,820.20 = 440,676.36 : x
  2. Step 2: Convert to fraction form
    644,592.24/888,820.20 = 440,676.36/x
  3. Step 3: Cross multiply
    644,592.24x = 888,820.20 × 440,676.36
  4. Step 4: Simplify right side
    644,592.24x = 391,682,050,430.47
  5. Step 5: Solve for x
    x = 391,682,050,430.47/644,592.24
  6. Step 6: Final answer
    x = 607,643.14

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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.