Home / 438,837.60-605,564.46-257,556.90

Finding the Fourth Proportional to 438,837.60, 605,564.46 and 257,556.90

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Solution

The fourth proportional to 438,837.60, 605,564.46 and 257,556.90 is: 355,410.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,837.60 : 605,564.46 = 257,556.90 : x
  2. Step 2: Convert to fraction form
    438,837.60/605,564.46 = 257,556.90/x
  3. Step 3: Cross multiply
    438,837.60x = 605,564.46 × 257,556.90
  4. Step 4: Simplify right side
    438,837.60x = 155,967,305,067.77
  5. Step 5: Solve for x
    x = 155,967,305,067.77/438,837.60
  6. Step 6: Final answer
    x = 355,410.08

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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.