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Finding the Fourth Proportional to 694,720.92, 958,895.10 and 393,089.88

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Solution

The fourth proportional to 694,720.92, 958,895.10 and 393,089.88 is: 542,566.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    694,720.92 : 958,895.10 = 393,089.88 : x
  2. Step 2: Convert to fraction form
    694,720.92/958,895.10 = 393,089.88/x
  3. Step 3: Cross multiply
    694,720.92x = 958,895.10 × 393,089.88
  4. Step 4: Simplify right side
    694,720.92x = 376,931,959,791.59
  5. Step 5: Solve for x
    x = 376,931,959,791.59/694,720.92
  6. Step 6: Final answer
    x = 542,566.01

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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.