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Finding the Fourth Proportional to 388,709.89, 583,111.55 and 367,452.25

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Solution

The fourth proportional to 388,709.89, 583,111.55 and 367,452.25 is: 551,222.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,709.89 : 583,111.55 = 367,452.25 : x
  2. Step 2: Convert to fraction form
    388,709.89/583,111.55 = 367,452.25/x
  3. Step 3: Cross multiply
    388,709.89x = 583,111.55 × 367,452.25
  4. Step 4: Simplify right side
    388,709.89x = 214,265,650,509.34
  5. Step 5: Solve for x
    x = 214,265,650,509.34/388,709.89
  6. Step 6: Final answer
    x = 551,222.54

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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.