Home / 438,577.12-605,241.38-257,292.13

Finding the Fourth Proportional to 438,577.12, 605,241.38 and 257,292.13

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Solution

The fourth proportional to 438,577.12, 605,241.38 and 257,292.13 is: 355,066.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,577.12 : 605,241.38 = 257,292.13 : x
  2. Step 2: Convert to fraction form
    438,577.12/605,241.38 = 257,292.13/x
  3. Step 3: Cross multiply
    438,577.12x = 605,241.38 × 257,292.13
  4. Step 4: Simplify right side
    438,577.12x = 155,723,843,824.34
  5. Step 5: Solve for x
    x = 155,723,843,824.34/438,577.12
  6. Step 6: Final answer
    x = 355,066.05

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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.