Home / 554,289.60-831,434.40-199,315.20

Finding the Fourth Proportional to 554,289.60, 831,434.40 and 199,315.20

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Solution

The fourth proportional to 554,289.60, 831,434.40 and 199,315.20 is: 298,972.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,289.60 : 831,434.40 = 199,315.20 : x
  2. Step 2: Convert to fraction form
    554,289.60/831,434.40 = 199,315.20/x
  3. Step 3: Cross multiply
    554,289.60x = 831,434.40 × 199,315.20
  4. Step 4: Simplify right side
    554,289.60x = 165,717,513,722.88
  5. Step 5: Solve for x
    x = 165,717,513,722.88/554,289.60
  6. Step 6: Final answer
    x = 298,972.80

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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.