Home / 403,414.02-556,725.15-222,138.45

Finding the Fourth Proportional to 403,414.02, 556,725.15 and 222,138.45

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Solution

The fourth proportional to 403,414.02, 556,725.15 and 222,138.45 is: 306,558.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,414.02 : 556,725.15 = 222,138.45 : x
  2. Step 2: Convert to fraction form
    403,414.02/556,725.15 = 222,138.45/x
  3. Step 3: Cross multiply
    403,414.02x = 556,725.15 × 222,138.45
  4. Step 4: Simplify right side
    403,414.02x = 123,670,061,897.02
  5. Step 5: Solve for x
    x = 123,670,061,897.02/403,414.02
  6. Step 6: Final answer
    x = 306,558.66

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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.