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Finding the Fourth Proportional to 722,415.52, 996,943.96 and 416,486.64

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Solution

The fourth proportional to 722,415.52, 996,943.96 and 416,486.64 is: 574,757.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,415.52 : 996,943.96 = 416,486.64 : x
  2. Step 2: Convert to fraction form
    722,415.52/996,943.96 = 416,486.64/x
  3. Step 3: Cross multiply
    722,415.52x = 996,943.96 × 416,486.64
  4. Step 4: Simplify right side
    722,415.52x = 415,213,840,168.69
  5. Step 5: Solve for x
    x = 415,213,840,168.69/722,415.52
  6. Step 6: Final answer
    x = 574,757.64

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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.