Home / 678,945.58-1,018,609.02-199,184.74

Finding the Fourth Proportional to 678,945.58, 1,018,609.02 and 199,184.74

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Solution

The fourth proportional to 678,945.58, 1,018,609.02 and 199,184.74 is: 298,833.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,945.58 : 1,018,609.02 = 199,184.74 : x
  2. Step 2: Convert to fraction form
    678,945.58/1,018,609.02 = 199,184.74/x
  3. Step 3: Cross multiply
    678,945.58x = 1,018,609.02 × 199,184.74
  4. Step 4: Simplify right side
    678,945.58x = 202,891,372,810.36
  5. Step 5: Solve for x
    x = 202,891,372,810.36/678,945.58
  6. Step 6: Final answer
    x = 298,833.04

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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.