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Finding the Fourth Proportional to 583,905.80, 875,858.70 and 343,773.20

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Solution

The fourth proportional to 583,905.80, 875,858.70 and 343,773.20 is: 515,659.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    583,905.80 : 875,858.70 = 343,773.20 : x
  2. Step 2: Convert to fraction form
    583,905.80/875,858.70 = 343,773.20/x
  3. Step 3: Cross multiply
    583,905.80x = 875,858.70 × 343,773.20
  4. Step 4: Simplify right side
    583,905.80x = 301,096,748,046.84
  5. Step 5: Solve for x
    x = 301,096,748,046.84/583,905.80
  6. Step 6: Final answer
    x = 515,659.80

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Similar ratio
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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.