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Finding the Fourth Proportional to 554,472.40, 831,706.17 and 217,274.80

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Solution

The fourth proportional to 554,472.40, 831,706.17 and 217,274.80 is: 325,911.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,472.40 : 831,706.17 = 217,274.80 : x
  2. Step 2: Convert to fraction form
    554,472.40/831,706.17 = 217,274.80/x
  3. Step 3: Cross multiply
    554,472.40x = 831,706.17 × 217,274.80
  4. Step 4: Simplify right side
    554,472.40x = 180,708,791,745.52
  5. Step 5: Solve for x
    x = 180,708,791,745.52/554,472.40
  6. Step 6: Final answer
    x = 325,911.25

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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.