Home / 320,865.66-442,798.11-177,628.23

Finding the Fourth Proportional to 320,865.66, 442,798.11 and 177,628.23

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Solution

The fourth proportional to 320,865.66, 442,798.11 and 177,628.23 is: 245,128.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,865.66 : 442,798.11 = 177,628.23 : x
  2. Step 2: Convert to fraction form
    320,865.66/442,798.11 = 177,628.23/x
  3. Step 3: Cross multiply
    320,865.66x = 442,798.11 × 177,628.23
  4. Step 4: Simplify right side
    320,865.66x = 78,653,444,526.65
  5. Step 5: Solve for x
    x = 78,653,444,526.65/320,865.66
  6. Step 6: Final answer
    x = 245,128.89

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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.