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Finding the Fourth Proportional to 576,043.20, 865,101.60 and 557,380.80

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Solution

The fourth proportional to 576,043.20, 865,101.60 and 557,380.80 is: 837,074.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,043.20 : 865,101.60 = 557,380.80 : x
  2. Step 2: Convert to fraction form
    576,043.20/865,101.60 = 557,380.80/x
  3. Step 3: Cross multiply
    576,043.20x = 865,101.60 × 557,380.80
  4. Step 4: Simplify right side
    576,043.20x = 482,191,021,889.28
  5. Step 5: Solve for x
    x = 482,191,021,889.28/576,043.20
  6. Step 6: Final answer
    x = 837,074.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.