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Finding the Fourth Proportional to 411,186.88, 616,326.88 and 268,973.12

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Solution

The fourth proportional to 411,186.88, 616,326.88 and 268,973.12 is: 403,163.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,186.88 : 616,326.88 = 268,973.12 : x
  2. Step 2: Convert to fraction form
    411,186.88/616,326.88 = 268,973.12/x
  3. Step 3: Cross multiply
    411,186.88x = 616,326.88 × 268,973.12
  4. Step 4: Simplify right side
    411,186.88x = 165,775,363,853.47
  5. Step 5: Solve for x
    x = 165,775,363,853.47/411,186.88
  6. Step 6: Final answer
    x = 403,163.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.