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Finding the Fourth Proportional to 662,553.96, 914,292 and 376,069.92

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Solution

The fourth proportional to 662,553.96, 914,292 and 376,069.92 is: 518,958.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,553.96 : 914,292 = 376,069.92 : x
  2. Step 2: Convert to fraction form
    662,553.96/914,292 = 376,069.92/x
  3. Step 3: Cross multiply
    662,553.96x = 914,292 × 376,069.92
  4. Step 4: Simplify right side
    662,553.96x = 343,837,719,296.64
  5. Step 5: Solve for x
    x = 343,837,719,296.64/662,553.96
  6. Step 6: Final answer
    x = 518,958.06

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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.