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Finding the Fourth Proportional to 554,561.98, 831,843.12 and 155,261.58

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Solution

The fourth proportional to 554,561.98, 831,843.12 and 155,261.58 is: 232,892.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,561.98 : 831,843.12 = 155,261.58 : x
  2. Step 2: Convert to fraction form
    554,561.98/831,843.12 = 155,261.58/x
  3. Step 3: Cross multiply
    554,561.98x = 831,843.12 × 155,261.58
  4. Step 4: Simplify right side
    554,561.98x = 129,153,277,123.33
  5. Step 5: Solve for x
    x = 129,153,277,123.33/554,561.98
  6. Step 6: Final answer
    x = 232,892.41

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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.