Home / 554,220.80-831,331.20-199,246.40

Finding the Fourth Proportional to 554,220.80, 831,331.20 and 199,246.40

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Solution

The fourth proportional to 554,220.80, 831,331.20 and 199,246.40 is: 298,869.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,220.80 : 831,331.20 = 199,246.40 : x
  2. Step 2: Convert to fraction form
    554,220.80/831,331.20 = 199,246.40/x
  3. Step 3: Cross multiply
    554,220.80x = 831,331.20 × 199,246.40
  4. Step 4: Simplify right side
    554,220.80x = 165,639,748,807.68
  5. Step 5: Solve for x
    x = 165,639,748,807.68/554,220.80
  6. Step 6: Final answer
    x = 298,869.60

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Double scale
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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.