Home / 295,010.10-442,515.15-81,777.60

Finding the Fourth Proportional to 295,010.10, 442,515.15 and 81,777.60

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Solution

The fourth proportional to 295,010.10, 442,515.15 and 81,777.60 is: 122,666.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,010.10 : 442,515.15 = 81,777.60 : x
  2. Step 2: Convert to fraction form
    295,010.10/442,515.15 = 81,777.60/x
  3. Step 3: Cross multiply
    295,010.10x = 442,515.15 × 81,777.60
  4. Step 4: Simplify right side
    295,010.10x = 36,187,826,930.64
  5. Step 5: Solve for x
    x = 36,187,826,930.64/295,010.10
  6. Step 6: Final answer
    x = 122,666.40

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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.