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Finding the Fourth Proportional to 583,840.20, 875,760.30 and 384,385.80

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Solution

The fourth proportional to 583,840.20, 875,760.30 and 384,385.80 is: 576,578.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    583,840.20 : 875,760.30 = 384,385.80 : x
  2. Step 2: Convert to fraction form
    583,840.20/875,760.30 = 384,385.80/x
  3. Step 3: Cross multiply
    583,840.20x = 875,760.30 × 384,385.80
  4. Step 4: Simplify right side
    583,840.20x = 336,629,823,523.74
  5. Step 5: Solve for x
    x = 336,629,823,523.74/583,840.20
  6. Step 6: Final answer
    x = 576,578.70

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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.