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Finding the Fourth Proportional to 406,745.92, 561,119.52 and 255,926.08

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Solution

The fourth proportional to 406,745.92, 561,119.52 and 255,926.08 is: 353,058.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,745.92 : 561,119.52 = 255,926.08 : x
  2. Step 2: Convert to fraction form
    406,745.92/561,119.52 = 255,926.08/x
  3. Step 3: Cross multiply
    406,745.92x = 561,119.52 × 255,926.08
  4. Step 4: Simplify right side
    406,745.92x = 143,605,119,165.08
  5. Step 5: Solve for x
    x = 143,605,119,165.08/406,745.92
  6. Step 6: Final answer
    x = 353,058.54

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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.