Home / 401,190.66-598,199.24-390,168.18

Finding the Fourth Proportional to 401,190.66, 598,199.24 and 390,168.18

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Solution

The fourth proportional to 401,190.66, 598,199.24 and 390,168.18 is: 581,764.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,190.66 : 598,199.24 = 390,168.18 : x
  2. Step 2: Convert to fraction form
    401,190.66/598,199.24 = 390,168.18/x
  3. Step 3: Cross multiply
    401,190.66x = 598,199.24 × 390,168.18
  4. Step 4: Simplify right side
    401,190.66x = 233,398,308,748.18
  5. Step 5: Solve for x
    x = 233,398,308,748.18/401,190.66
  6. Step 6: Final answer
    x = 581,764.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.