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Finding the Fourth Proportional to 352,611.10, 528,041.85 and 282,627.10

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Solution

The fourth proportional to 352,611.10, 528,041.85 and 282,627.10 is: 423,239.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,611.10 : 528,041.85 = 282,627.10 : x
  2. Step 2: Convert to fraction form
    352,611.10/528,041.85 = 282,627.10/x
  3. Step 3: Cross multiply
    352,611.10x = 528,041.85 × 282,627.10
  4. Step 4: Simplify right side
    352,611.10x = 149,238,936,744.14
  5. Step 5: Solve for x
    x = 149,238,936,744.14/352,611.10
  6. Step 6: Final answer
    x = 423,239.47

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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.