Home / 453,943.23-680,913.01-138,399.22

Finding the Fourth Proportional to 453,943.23, 680,913.01 and 138,399.22

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Solution

The fourth proportional to 453,943.23, 680,913.01 and 138,399.22 is: 207,598.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,943.23 : 680,913.01 = 138,399.22 : x
  2. Step 2: Convert to fraction form
    453,943.23/680,913.01 = 138,399.22/x
  3. Step 3: Cross multiply
    453,943.23x = 680,913.01 × 138,399.22
  4. Step 4: Simplify right side
    453,943.23x = 94,237,829,471.85
  5. Step 5: Solve for x
    x = 94,237,829,471.85/453,943.23
  6. Step 6: Final answer
    x = 207,598.27

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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.