Home / 672,220.28-927,664.11-366,296.72

Finding the Fourth Proportional to 672,220.28, 927,664.11 and 366,296.72

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Solution

The fourth proportional to 672,220.28, 927,664.11 and 366,296.72 is: 505,489.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,220.28 : 927,664.11 = 366,296.72 : x
  2. Step 2: Convert to fraction form
    672,220.28/927,664.11 = 366,296.72/x
  3. Step 3: Cross multiply
    672,220.28x = 927,664.11 × 366,296.72
  4. Step 4: Simplify right side
    672,220.28x = 339,800,316,116.40
  5. Step 5: Solve for x
    x = 339,800,316,116.40/672,220.28
  6. Step 6: Final answer
    x = 505,489.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.