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Finding the Fourth Proportional to 580,015.20, 800,368.56 and 353,615.52

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Solution

The fourth proportional to 580,015.20, 800,368.56 and 353,615.52 is: 487,957.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    580,015.20 : 800,368.56 = 353,615.52 : x
  2. Step 2: Convert to fraction form
    580,015.20/800,368.56 = 353,615.52/x
  3. Step 3: Cross multiply
    580,015.20x = 800,368.56 × 353,615.52
  4. Step 4: Simplify right side
    580,015.20x = 283,022,744,536.05
  5. Step 5: Solve for x
    x = 283,022,744,536.05/580,015.20
  6. Step 6: Final answer
    x = 487,957.46

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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.