Home / 862,106.79-1,189,707.37-480,133.57

Finding the Fourth Proportional to 862,106.79, 1,189,707.37 and 480,133.57

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Solution

The fourth proportional to 862,106.79, 1,189,707.37 and 480,133.57 is: 662,584.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    862,106.79 : 1,189,707.37 = 480,133.57 : x
  2. Step 2: Convert to fraction form
    862,106.79/1,189,707.37 = 480,133.57/x
  3. Step 3: Cross multiply
    862,106.79x = 1,189,707.37 × 480,133.57
  4. Step 4: Simplify right side
    862,106.79x = 571,218,446,813.41
  5. Step 5: Solve for x
    x = 571,218,446,813.41/862,106.79
  6. Step 6: Final answer
    x = 662,584.33

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Double scale
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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.