Home / 862,660.94-1,190,456.15-470,197.28

Finding the Fourth Proportional to 862,660.94, 1,190,456.15 and 470,197.28

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Solution

The fourth proportional to 862,660.94, 1,190,456.15 and 470,197.28 is: 648,863.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    862,660.94 : 1,190,456.15 = 470,197.28 : x
  2. Step 2: Convert to fraction form
    862,660.94/1,190,456.15 = 470,197.28/x
  3. Step 3: Cross multiply
    862,660.94x = 1,190,456.15 × 470,197.28
  4. Step 4: Simplify right side
    862,660.94x = 559,749,235,386.01
  5. Step 5: Solve for x
    x = 559,749,235,386.01/862,660.94
  6. Step 6: Final answer
    x = 648,863.55

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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.