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Finding the Fourth Proportional to 606,147.12, 909,220.56 and 162,915.12

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Solution

The fourth proportional to 606,147.12, 909,220.56 and 162,915.12 is: 244,372.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,147.12 : 909,220.56 = 162,915.12 : x
  2. Step 2: Convert to fraction form
    606,147.12/909,220.56 = 162,915.12/x
  3. Step 3: Cross multiply
    606,147.12x = 909,220.56 × 162,915.12
  4. Step 4: Simplify right side
    606,147.12x = 148,125,776,638.87
  5. Step 5: Solve for x
    x = 148,125,776,638.87/606,147.12
  6. Step 6: Final answer
    x = 244,372.65

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Similar ratio
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1.5x scale

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.