Home / 403,177.78-556,364.60-221,906.92

Finding the Fourth Proportional to 403,177.78, 556,364.60 and 221,906.92

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Solution

The fourth proportional to 403,177.78, 556,364.60 and 221,906.92 is: 306,220.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,177.78 : 556,364.60 = 221,906.92 : x
  2. Step 2: Convert to fraction form
    403,177.78/556,364.60 = 221,906.92/x
  3. Step 3: Cross multiply
    403,177.78x = 556,364.60 × 221,906.92
  4. Step 4: Simplify right side
    403,177.78x = 123,461,152,593.15
  5. Step 5: Solve for x
    x = 123,461,152,593.15/403,177.78
  6. Step 6: Final answer
    x = 306,220.13

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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.