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Finding the Fourth Proportional to 554,087.90, 831,131.85 and 550,588.70

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Solution

The fourth proportional to 554,087.90, 831,131.85 and 550,588.70 is: 825,883.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,087.90 : 831,131.85 = 550,588.70 : x
  2. Step 2: Convert to fraction form
    554,087.90/831,131.85 = 550,588.70/x
  3. Step 3: Cross multiply
    554,087.90x = 831,131.85 × 550,588.70
  4. Step 4: Simplify right side
    554,087.90x = 457,611,804,820.10
  5. Step 5: Solve for x
    x = 457,611,804,820.10/554,087.90
  6. Step 6: Final answer
    x = 825,883.05

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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.