Home / 411,111.56-616,536.10-130,563.20

Finding the Fourth Proportional to 411,111.56, 616,536.10 and 130,563.20

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Solution

The fourth proportional to 411,111.56, 616,536.10 and 130,563.20 is: 195,803.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,111.56 : 616,536.10 = 130,563.20 : x
  2. Step 2: Convert to fraction form
    411,111.56/616,536.10 = 130,563.20/x
  3. Step 3: Cross multiply
    411,111.56x = 616,536.10 × 130,563.20
  4. Step 4: Simplify right side
    411,111.56x = 80,496,926,131.52
  5. Step 5: Solve for x
    x = 80,496,926,131.52/411,111.56
  6. Step 6: Final answer
    x = 195,803.12

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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.