Home / 3,128,171.70-4,692,257.55-998,411.70

Finding the Fourth Proportional to 3,128,171.70, 4,692,257.55 and 998,411.70

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Solution

The fourth proportional to 3,128,171.70, 4,692,257.55 and 998,411.70 is: 1,497,617.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,128,171.70 : 4,692,257.55 = 998,411.70 : x
  2. Step 2: Convert to fraction form
    3,128,171.70/4,692,257.55 = 998,411.70/x
  3. Step 3: Cross multiply
    3,128,171.70x = 4,692,257.55 × 998,411.70
  4. Step 4: Simplify right side
    3,128,171.70x = 4,684,804,837,333.34
  5. Step 5: Solve for x
    x = 4,684,804,837,333.34/3,128,171.70
  6. Step 6: Final answer
    x = 1,497,617.55

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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.