Home / 641,724.76-885,629.36-366,088.69

Finding the Fourth Proportional to 641,724.76, 885,629.36 and 366,088.69

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Solution

The fourth proportional to 641,724.76, 885,629.36 and 366,088.69 is: 505,230.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,724.76 : 885,629.36 = 366,088.69 : x
  2. Step 2: Convert to fraction form
    641,724.76/885,629.36 = 366,088.69/x
  3. Step 3: Cross multiply
    641,724.76x = 885,629.36 × 366,088.69
  4. Step 4: Simplify right side
    641,724.76x = 324,218,885,969.35
  5. Step 5: Solve for x
    x = 324,218,885,969.35/641,724.76
  6. Step 6: Final answer
    x = 505,230.45

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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.