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Finding the Fourth Proportional to 607,705.62, 911,558.84 and 158,425.35

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Solution

The fourth proportional to 607,705.62, 911,558.84 and 158,425.35 is: 237,638.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,705.62 : 911,558.84 = 158,425.35 : x
  2. Step 2: Convert to fraction form
    607,705.62/911,558.84 = 158,425.35/x
  3. Step 3: Cross multiply
    607,705.62x = 911,558.84 × 158,425.35
  4. Step 4: Simplify right side
    607,705.62x = 144,414,027,480.47
  5. Step 5: Solve for x
    x = 144,414,027,480.47/607,705.62
  6. Step 6: Final answer
    x = 237,638.13

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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.