Home / 438,575.33-605,228.93-257,252.38

Finding the Fourth Proportional to 438,575.33, 605,228.93 and 257,252.38

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Solution

The fourth proportional to 438,575.33, 605,228.93 and 257,252.38 is: 355,005.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,575.33 : 605,228.93 = 257,252.38 : x
  2. Step 2: Convert to fraction form
    438,575.33/605,228.93 = 257,252.38/x
  3. Step 3: Cross multiply
    438,575.33x = 605,228.93 × 257,252.38
  4. Step 4: Simplify right side
    438,575.33x = 155,696,579,888.02
  5. Step 5: Solve for x
    x = 155,696,579,888.02/438,575.33
  6. Step 6: Final answer
    x = 355,005.33

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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.