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Finding the Fourth Proportional to 554,131.81, 831,197.85 and 133,407.73

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Solution

The fourth proportional to 554,131.81, 831,197.85 and 133,407.73 is: 200,111.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,131.81 : 831,197.85 = 133,407.73 : x
  2. Step 2: Convert to fraction form
    554,131.81/831,197.85 = 133,407.73/x
  3. Step 3: Cross multiply
    554,131.81x = 831,197.85 × 133,407.73
  4. Step 4: Simplify right side
    554,131.81x = 110,888,218,349.38
  5. Step 5: Solve for x
    x = 110,888,218,349.38/554,131.81
  6. Step 6: Final answer
    x = 200,111.63

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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.