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Finding the Fourth Proportional to 395,586.18, 593,155.71 and 155,774.34

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Solution

The fourth proportional to 395,586.18, 593,155.71 and 155,774.34 is: 233,573.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,586.18 : 593,155.71 = 155,774.34 : x
  2. Step 2: Convert to fraction form
    395,586.18/593,155.71 = 155,774.34/x
  3. Step 3: Cross multiply
    395,586.18x = 593,155.71 × 155,774.34
  4. Step 4: Simplify right side
    395,586.18x = 92,398,439,242.48
  5. Step 5: Solve for x
    x = 92,398,439,242.48/395,586.18
  6. Step 6: Final answer
    x = 233,573.48

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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.