Home / 644,810.24-889,120.20-440,894.72

Finding the Fourth Proportional to 644,810.24, 889,120.20 and 440,894.72

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Solution

The fourth proportional to 644,810.24, 889,120.20 and 440,894.72 is: 607,943.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,810.24 : 889,120.20 = 440,894.72 : x
  2. Step 2: Convert to fraction form
    644,810.24/889,120.20 = 440,894.72/x
  3. Step 3: Cross multiply
    644,810.24x = 889,120.20 × 440,894.72
  4. Step 4: Simplify right side
    644,810.24x = 392,008,401,625.34
  5. Step 5: Solve for x
    x = 392,008,401,625.34/644,810.24
  6. Step 6: Final answer
    x = 607,943.82

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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.