Home / 641,536.17-885,227.23-355,055.58

Finding the Fourth Proportional to 641,536.17, 885,227.23 and 355,055.58

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Solution

The fourth proportional to 641,536.17, 885,227.23 and 355,055.58 is: 489,925.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,536.17 : 885,227.23 = 355,055.58 : x
  2. Step 2: Convert to fraction form
    641,536.17/885,227.23 = 355,055.58/x
  3. Step 3: Cross multiply
    641,536.17x = 885,227.23 × 355,055.58
  4. Step 4: Simplify right side
    641,536.17x = 314,304,867,579.44
  5. Step 5: Solve for x
    x = 314,304,867,579.44/641,536.17
  6. Step 6: Final answer
    x = 489,925.40

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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.