Home / 403,458.40-556,776.76-222,187.20

Finding the Fourth Proportional to 403,458.40, 556,776.76 and 222,187.20

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Solution

The fourth proportional to 403,458.40, 556,776.76 and 222,187.20 is: 306,620.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,458.40 : 556,776.76 = 222,187.20 : x
  2. Step 2: Convert to fraction form
    403,458.40/556,776.76 = 222,187.20/x
  3. Step 3: Cross multiply
    403,458.40x = 556,776.76 × 222,187.20
  4. Step 4: Simplify right side
    403,458.40x = 123,708,669,329.47
  5. Step 5: Solve for x
    x = 123,708,669,329.47/403,458.40
  6. Step 6: Final answer
    x = 306,620.63

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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.