Home / 923,942.90-1,385,673.76-391,189.70

Finding the Fourth Proportional to 923,942.90, 1,385,673.76 and 391,189.70

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Solution

The fourth proportional to 923,942.90, 1,385,673.76 and 391,189.70 is: 586,682.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    923,942.90 : 1,385,673.76 = 391,189.70 : x
  2. Step 2: Convert to fraction form
    923,942.90/1,385,673.76 = 391,189.70/x
  3. Step 3: Cross multiply
    923,942.90x = 1,385,673.76 × 391,189.70
  4. Step 4: Simplify right side
    923,942.90x = 542,061,302,472.27
  5. Step 5: Solve for x
    x = 542,061,302,472.27/923,942.90
  6. Step 6: Final answer
    x = 586,682.69

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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.