Home / 403,398.18-556,684.90-222,106.40

Finding the Fourth Proportional to 403,398.18, 556,684.90 and 222,106.40

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Solution

The fourth proportional to 403,398.18, 556,684.90 and 222,106.40 is: 306,504.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,398.18 : 556,684.90 = 222,106.40 : x
  2. Step 2: Convert to fraction form
    403,398.18/556,684.90 = 222,106.40/x
  3. Step 3: Cross multiply
    403,398.18x = 556,684.90 × 222,106.40
  4. Step 4: Simplify right side
    403,398.18x = 123,643,279,073.36
  5. Step 5: Solve for x
    x = 123,643,279,073.36/403,398.18
  6. Step 6: Final answer
    x = 306,504.31

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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.