Home / 399,088.20-598,632.30-189,136.20

Finding the Fourth Proportional to 399,088.20, 598,632.30 and 189,136.20

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Solution

The fourth proportional to 399,088.20, 598,632.30 and 189,136.20 is: 283,704.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,088.20 : 598,632.30 = 189,136.20 : x
  2. Step 2: Convert to fraction form
    399,088.20/598,632.30 = 189,136.20/x
  3. Step 3: Cross multiply
    399,088.20x = 598,632.30 × 189,136.20
  4. Step 4: Simplify right side
    399,088.20x = 113,223,038,419.26
  5. Step 5: Solve for x
    x = 113,223,038,419.26/399,088.20
  6. Step 6: Final answer
    x = 283,704.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.