Home / 862,323.16-1,190,042.78-480,350.20

Finding the Fourth Proportional to 862,323.16, 1,190,042.78 and 480,350.20

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Solution

The fourth proportional to 862,323.16, 1,190,042.78 and 480,350.20 is: 662,903.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    862,323.16 : 1,190,042.78 = 480,350.20 : x
  2. Step 2: Convert to fraction form
    862,323.16/1,190,042.78 = 480,350.20/x
  3. Step 3: Cross multiply
    862,323.16x = 1,190,042.78 × 480,350.20
  4. Step 4: Simplify right side
    862,323.16x = 571,637,287,381.56
  5. Step 5: Solve for x
    x = 571,637,287,381.56/862,323.16
  6. Step 6: Final answer
    x = 662,903.79

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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.