Home / 438,366.27-605,083.29-257,151.45

Finding the Fourth Proportional to 438,366.27, 605,083.29 and 257,151.45

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Solution

The fourth proportional to 438,366.27, 605,083.29 and 257,151.45 is: 354,949.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,366.27 : 605,083.29 = 257,151.45 : x
  2. Step 2: Convert to fraction form
    438,366.27/605,083.29 = 257,151.45/x
  3. Step 3: Cross multiply
    438,366.27x = 605,083.29 × 257,151.45
  4. Step 4: Simplify right side
    438,366.27x = 155,598,045,394.27
  5. Step 5: Solve for x
    x = 155,598,045,394.27/438,366.27
  6. Step 6: Final answer
    x = 354,949.86

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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.