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Finding the Fourth Proportional to 404,447.10, 606,670.65 and 254,856.30

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Solution

The fourth proportional to 404,447.10, 606,670.65 and 254,856.30 is: 382,284.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,447.10 : 606,670.65 = 254,856.30 : x
  2. Step 2: Convert to fraction form
    404,447.10/606,670.65 = 254,856.30/x
  3. Step 3: Cross multiply
    404,447.10x = 606,670.65 × 254,856.30
  4. Step 4: Simplify right side
    404,447.10x = 154,613,837,177.60
  5. Step 5: Solve for x
    x = 154,613,837,177.60/404,447.10
  6. Step 6: Final answer
    x = 382,284.45

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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.