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Finding the Fourth Proportional to 611,523.92, 917,253.48 and 190,751.60

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Solution

The fourth proportional to 611,523.92, 917,253.48 and 190,751.60 is: 286,117.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,523.92 : 917,253.48 = 190,751.60 : x
  2. Step 2: Convert to fraction form
    611,523.92/917,253.48 = 190,751.60/x
  3. Step 3: Cross multiply
    611,523.92x = 917,253.48 × 190,751.60
  4. Step 4: Simplify right side
    611,523.92x = 174,967,568,915.57
  5. Step 5: Solve for x
    x = 174,967,568,915.57/611,523.92
  6. Step 6: Final answer
    x = 286,117.29

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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.