Home / 453,986.41-680,977.80-138,442.41

Finding the Fourth Proportional to 453,986.41, 680,977.80 and 138,442.41

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Solution

The fourth proportional to 453,986.41, 680,977.80 and 138,442.41 is: 207,663.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,986.41 : 680,977.80 = 138,442.41 : x
  2. Step 2: Convert to fraction form
    453,986.41/680,977.80 = 138,442.41/x
  3. Step 3: Cross multiply
    453,986.41x = 680,977.80 × 138,442.41
  4. Step 4: Simplify right side
    453,986.41x = 94,276,207,788.50
  5. Step 5: Solve for x
    x = 94,276,207,788.50/453,986.41
  6. Step 6: Final answer
    x = 207,663.06

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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.