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Finding the Fourth Proportional to 611,839.86, 917,756.14 and 237,862.86

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Solution

The fourth proportional to 611,839.86, 917,756.14 and 237,862.86 is: 356,792.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,839.86 : 917,756.14 = 237,862.86 : x
  2. Step 2: Convert to fraction form
    611,839.86/917,756.14 = 237,862.86/x
  3. Step 3: Cross multiply
    611,839.86x = 917,756.14 × 237,862.86
  4. Step 4: Simplify right side
    611,839.86x = 218,300,100,242.96
  5. Step 5: Solve for x
    x = 218,300,100,242.96/611,839.86
  6. Step 6: Final answer
    x = 356,792.87

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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.