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Finding the Fourth Proportional to 368,772.20, 515,100.10 and 368,772.20

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Solution

The fourth proportional to 368,772.20, 515,100.10 and 368,772.20 is: 515,100.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,772.20 : 515,100.10 = 368,772.20 : x
  2. Step 2: Convert to fraction form
    368,772.20/515,100.10 = 368,772.20/x
  3. Step 3: Cross multiply
    368,772.20x = 515,100.10 × 368,772.20
  4. Step 4: Simplify right side
    368,772.20x = 189,954,597,097.22
  5. Step 5: Solve for x
    x = 189,954,597,097.22/368,772.20
  6. Step 6: Final answer
    x = 515,100.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.