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Finding the Fourth Proportional to 553,326.54, 763,580.25 and 338,450.82

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Solution

The fourth proportional to 553,326.54, 763,580.25 and 338,450.82 is: 467,055.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,326.54 : 763,580.25 = 338,450.82 : x
  2. Step 2: Convert to fraction form
    553,326.54/763,580.25 = 338,450.82/x
  3. Step 3: Cross multiply
    553,326.54x = 763,580.25 × 338,450.82
  4. Step 4: Simplify right side
    553,326.54x = 258,434,361,748.31
  5. Step 5: Solve for x
    x = 258,434,361,748.31/553,326.54
  6. Step 6: Final answer
    x = 467,055.79

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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.