Home / 641,535.17-885,225.86-355,054.58

Finding the Fourth Proportional to 641,535.17, 885,225.86 and 355,054.58

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Solution

The fourth proportional to 641,535.17, 885,225.86 and 355,054.58 is: 489,924.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,535.17 : 885,225.86 = 355,054.58 : x
  2. Step 2: Convert to fraction form
    641,535.17/885,225.86 = 355,054.58/x
  3. Step 3: Cross multiply
    641,535.17x = 885,225.86 × 355,054.58
  4. Step 4: Simplify right side
    641,535.17x = 314,303,489,726.04
  5. Step 5: Solve for x
    x = 314,303,489,726.04/641,535.17
  6. Step 6: Final answer
    x = 489,924.02

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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.