Home / 3,128,171.20-4,692,256.80-998,411.20

Finding the Fourth Proportional to 3,128,171.20, 4,692,256.80 and 998,411.20

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Solution

The fourth proportional to 3,128,171.20, 4,692,256.80 and 998,411.20 is: 1,497,616.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,128,171.20 : 4,692,256.80 = 998,411.20 : x
  2. Step 2: Convert to fraction form
    3,128,171.20/4,692,256.80 = 998,411.20/x
  3. Step 3: Cross multiply
    3,128,171.20x = 4,692,256.80 × 998,411.20
  4. Step 4: Simplify right side
    3,128,171.20x = 4,684,801,742,396.16
  5. Step 5: Solve for x
    x = 4,684,801,742,396.16/3,128,171.20
  6. Step 6: Final answer
    x = 1,497,616.80

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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.