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Finding the Fourth Proportional to 553,939.83, 831,283.16 and 194,113.92

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Solution

The fourth proportional to 553,939.83, 831,283.16 and 194,113.92 is: 291,301.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,939.83 : 831,283.16 = 194,113.92 : x
  2. Step 2: Convert to fraction form
    553,939.83/831,283.16 = 194,113.92/x
  3. Step 3: Cross multiply
    553,939.83x = 831,283.16 × 194,113.92
  4. Step 4: Simplify right side
    553,939.83x = 161,363,632,817.59
  5. Step 5: Solve for x
    x = 161,363,632,817.59/553,939.83
  6. Step 6: Final answer
    x = 291,301.73

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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.