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Finding the Fourth Proportional to 538,511.13, 743,132.52 and 293,503.64

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Solution

The fourth proportional to 538,511.13, 743,132.52 and 293,503.64 is: 405,028.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,511.13 : 743,132.52 = 293,503.64 : x
  2. Step 2: Convert to fraction form
    538,511.13/743,132.52 = 293,503.64/x
  3. Step 3: Cross multiply
    538,511.13x = 743,132.52 × 293,503.64
  4. Step 4: Simplify right side
    538,511.13x = 218,112,095,906.71
  5. Step 5: Solve for x
    x = 218,112,095,906.71/538,511.13
  6. Step 6: Final answer
    x = 405,028.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.