Home / 403,628.84-557,005.20-222,336.56

Finding the Fourth Proportional to 403,628.84, 557,005.20 and 222,336.56

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Solution

The fourth proportional to 403,628.84, 557,005.20 and 222,336.56 is: 306,823.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,628.84 : 557,005.20 = 222,336.56 : x
  2. Step 2: Convert to fraction form
    403,628.84/557,005.20 = 222,336.56/x
  3. Step 3: Cross multiply
    403,628.84x = 557,005.20 × 222,336.56
  4. Step 4: Simplify right side
    403,628.84x = 123,842,620,070.11
  5. Step 5: Solve for x
    x = 123,842,620,070.11/403,628.84
  6. Step 6: Final answer
    x = 306,823.02

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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.