Home / 438,530.57-605,172.23-237,326.57

Finding the Fourth Proportional to 438,530.57, 605,172.23 and 237,326.57

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Solution

The fourth proportional to 438,530.57, 605,172.23 and 237,326.57 is: 327,510.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,530.57 : 605,172.23 = 237,326.57 : x
  2. Step 2: Convert to fraction form
    438,530.57/605,172.23 = 237,326.57/x
  3. Step 3: Cross multiply
    438,530.57x = 605,172.23 × 237,326.57
  4. Step 4: Simplify right side
    438,530.57x = 143,623,449,605.15
  5. Step 5: Solve for x
    x = 143,623,449,605.15/438,530.57
  6. Step 6: Final answer
    x = 327,510.69

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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.