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Finding the Fourth Proportional to 403,770.71, 557,228.40 and 222,482.59

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Solution

The fourth proportional to 403,770.71, 557,228.40 and 222,482.59 is: 307,039.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,770.71 : 557,228.40 = 222,482.59 : x
  2. Step 2: Convert to fraction form
    403,770.71/557,228.40 = 222,482.59/x
  3. Step 3: Cross multiply
    403,770.71x = 557,228.40 × 222,482.59
  4. Step 4: Simplify right side
    403,770.71x = 123,973,617,653.56
  5. Step 5: Solve for x
    x = 123,973,617,653.56/403,770.71
  6. Step 6: Final answer
    x = 307,039.65

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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.