Home / 641,246.40-961,869.60-167,979.60

Finding the Fourth Proportional to 641,246.40, 961,869.60 and 167,979.60

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Solution

The fourth proportional to 641,246.40, 961,869.60 and 167,979.60 is: 251,969.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,246.40 : 961,869.60 = 167,979.60 : x
  2. Step 2: Convert to fraction form
    641,246.40/961,869.60 = 167,979.60/x
  3. Step 3: Cross multiply
    641,246.40x = 961,869.60 × 167,979.60
  4. Step 4: Simplify right side
    641,246.40x = 161,574,470,660.16
  5. Step 5: Solve for x
    x = 161,574,470,660.16/641,246.40
  6. Step 6: Final answer
    x = 251,969.40

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Similar ratio
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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.