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Finding the Fourth Proportional to 553,327.54, 763,581.63 and 338,451.82

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Solution

The fourth proportional to 553,327.54, 763,581.63 and 338,451.82 is: 467,057.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,327.54 : 763,581.63 = 338,451.82 : x
  2. Step 2: Convert to fraction form
    553,327.54/763,581.63 = 338,451.82/x
  3. Step 3: Cross multiply
    553,327.54x = 763,581.63 × 338,451.82
  4. Step 4: Simplify right side
    553,327.54x = 258,435,592,392.07
  5. Step 5: Solve for x
    x = 258,435,592,392.07/553,327.54
  6. Step 6: Final answer
    x = 467,057.17

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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.