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Finding the Fourth Proportional to 401,788.52, 554,841.60 and 258,794.36

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Solution

The fourth proportional to 401,788.52, 554,841.60 and 258,794.36 is: 357,376.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,788.52 : 554,841.60 = 258,794.36 : x
  2. Step 2: Convert to fraction form
    401,788.52/554,841.60 = 258,794.36/x
  3. Step 3: Cross multiply
    401,788.52x = 554,841.60 × 258,794.36
  4. Step 4: Simplify right side
    401,788.52x = 143,589,876,773.38
  5. Step 5: Solve for x
    x = 143,589,876,773.38/401,788.52
  6. Step 6: Final answer
    x = 357,376.75

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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.