Home / 641,716.83-885,569.49-351,347.22

Finding the Fourth Proportional to 641,716.83, 885,569.49 and 351,347.22

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Solution

The fourth proportional to 641,716.83, 885,569.49 and 351,347.22 is: 484,859.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,716.83 : 885,569.49 = 351,347.22 : x
  2. Step 2: Convert to fraction form
    641,716.83/885,569.49 = 351,347.22/x
  3. Step 3: Cross multiply
    641,716.83x = 885,569.49 × 351,347.22
  4. Step 4: Simplify right side
    641,716.83x = 311,142,378,428.32
  5. Step 5: Solve for x
    x = 311,142,378,428.32/641,716.83
  6. Step 6: Final answer
    x = 484,859.31

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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.