Home / 554,261.60-831,392.40-199,287.20

Finding the Fourth Proportional to 554,261.60, 831,392.40 and 199,287.20

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Solution

The fourth proportional to 554,261.60, 831,392.40 and 199,287.20 is: 298,930.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,261.60 : 831,392.40 = 199,287.20 : x
  2. Step 2: Convert to fraction form
    554,261.60/831,392.40 = 199,287.20/x
  3. Step 3: Cross multiply
    554,261.60x = 831,392.40 × 199,287.20
  4. Step 4: Simplify right side
    554,261.60x = 165,685,863,497.28
  5. Step 5: Solve for x
    x = 165,685,863,497.28/554,261.60
  6. Step 6: Final answer
    x = 298,930.80

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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.