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Finding the Fourth Proportional to 458,871.12, 688,175.46 and 234,091.26

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Solution

The fourth proportional to 458,871.12, 688,175.46 and 234,091.26 is: 351,069.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,871.12 : 688,175.46 = 234,091.26 : x
  2. Step 2: Convert to fraction form
    458,871.12/688,175.46 = 234,091.26/x
  3. Step 3: Cross multiply
    458,871.12x = 688,175.46 × 234,091.26
  4. Step 4: Simplify right side
    458,871.12x = 161,095,860,532.48
  5. Step 5: Solve for x
    x = 161,095,860,532.48/458,871.12
  6. Step 6: Final answer
    x = 351,069.95

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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.