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Finding the Fourth Proportional to 401,666.42, 554,319.78 and 229,593.26

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Solution

The fourth proportional to 401,666.42, 554,319.78 and 229,593.26 is: 316,850.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,666.42 : 554,319.78 = 229,593.26 : x
  2. Step 2: Convert to fraction form
    401,666.42/554,319.78 = 229,593.26/x
  3. Step 3: Cross multiply
    401,666.42x = 554,319.78 × 229,593.26
  4. Step 4: Simplify right side
    401,666.42x = 127,268,085,372.68
  5. Step 5: Solve for x
    x = 127,268,085,372.68/401,666.42
  6. Step 6: Final answer
    x = 316,850.20

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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.