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Finding the Fourth Proportional to 403,585.70, 556,973.55 and 222,297.57

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Solution

The fourth proportional to 403,585.70, 556,973.55 and 222,297.57 is: 306,784.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,585.70 : 556,973.55 = 222,297.57 : x
  2. Step 2: Convert to fraction form
    403,585.70/556,973.55 = 222,297.57/x
  3. Step 3: Cross multiply
    403,585.70x = 556,973.55 × 222,297.57
  4. Step 4: Simplify right side
    403,585.70x = 123,813,866,719.27
  5. Step 5: Solve for x
    x = 123,813,866,719.27/403,585.70
  6. Step 6: Final answer
    x = 306,784.58

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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.