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Finding the Fourth Proportional to 348,015.92, 521,911.56 and 98,630.96

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Solution

The fourth proportional to 348,015.92, 521,911.56 and 98,630.96 is: 147,914.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,015.92 : 521,911.56 = 98,630.96 : x
  2. Step 2: Convert to fraction form
    348,015.92/521,911.56 = 98,630.96/x
  3. Step 3: Cross multiply
    348,015.92x = 521,911.56 × 98,630.96
  4. Step 4: Simplify right side
    348,015.92x = 51,476,638,197.90
  5. Step 5: Solve for x
    x = 51,476,638,197.90/348,015.92
  6. Step 6: Final answer
    x = 147,914.61

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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.