Home / 644,536.40-889,444.26-358,057.19

Finding the Fourth Proportional to 644,536.40, 889,444.26 and 358,057.19

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Solution

The fourth proportional to 644,536.40, 889,444.26 and 358,057.19 is: 494,110.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,536.40 : 889,444.26 = 358,057.19 : x
  2. Step 2: Convert to fraction form
    644,536.40/889,444.26 = 358,057.19/x
  3. Step 3: Cross multiply
    644,536.40x = 889,444.26 × 358,057.19
  4. Step 4: Simplify right side
    644,536.40x = 318,471,907,950.01
  5. Step 5: Solve for x
    x = 318,471,907,950.01/644,536.40
  6. Step 6: Final answer
    x = 494,110.05

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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.