Home / 438,741.96-605,467.92-257,456.92

Finding the Fourth Proportional to 438,741.96, 605,467.92 and 257,456.92

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Solution

The fourth proportional to 438,741.96, 605,467.92 and 257,456.92 is: 355,292.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,741.96 : 605,467.92 = 257,456.92 : x
  2. Step 2: Convert to fraction form
    438,741.96/605,467.92 = 257,456.92/x
  3. Step 3: Cross multiply
    438,741.96x = 605,467.92 × 257,456.92
  4. Step 4: Simplify right side
    438,741.96x = 155,881,905,842.01
  5. Step 5: Solve for x
    x = 155,881,905,842.01/438,741.96
  6. Step 6: Final answer
    x = 355,292.91

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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.