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Finding the Fourth Proportional to 461,066.88, 636,431.04 and 270,142.08

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Solution

The fourth proportional to 461,066.88, 636,431.04 and 270,142.08 is: 372,889.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    461,066.88 : 636,431.04 = 270,142.08 : x
  2. Step 2: Convert to fraction form
    461,066.88/636,431.04 = 270,142.08/x
  3. Step 3: Cross multiply
    461,066.88x = 636,431.04 × 270,142.08
  4. Step 4: Simplify right side
    461,066.88x = 171,926,804,922.16
  5. Step 5: Solve for x
    x = 171,926,804,922.16/461,066.88
  6. Step 6: Final answer
    x = 372,889.08

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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.