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Finding the Fourth Proportional to 388,709.14, 583,110.43 and 367,451.50

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Solution

The fourth proportional to 388,709.14, 583,110.43 and 367,451.50 is: 551,221.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,709.14 : 583,110.43 = 367,451.50 : x
  2. Step 2: Convert to fraction form
    388,709.14/583,110.43 = 367,451.50/x
  3. Step 3: Cross multiply
    388,709.14x = 583,110.43 × 367,451.50
  4. Step 4: Simplify right side
    388,709.14x = 214,264,799,792.74
  5. Step 5: Solve for x
    x = 214,264,799,792.74/388,709.14
  6. Step 6: Final answer
    x = 551,221.41

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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.