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Finding the Fourth Proportional to 640,059.52, 883,249.48 and 353,524.20

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Solution

The fourth proportional to 640,059.52, 883,249.48 and 353,524.20 is: 487,845.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    640,059.52 : 883,249.48 = 353,524.20 : x
  2. Step 2: Convert to fraction form
    640,059.52/883,249.48 = 353,524.20/x
  3. Step 3: Cross multiply
    640,059.52x = 883,249.48 × 353,524.20
  4. Step 4: Simplify right side
    640,059.52x = 312,250,065,817.42
  5. Step 5: Solve for x
    x = 312,250,065,817.42/640,059.52
  6. Step 6: Final answer
    x = 487,845.36

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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.