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Finding the Fourth Proportional to 649,889.07, 896,871.39 and 363,408.47

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Solution

The fourth proportional to 649,889.07, 896,871.39 and 363,408.47 is: 501,517.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,889.07 : 896,871.39 = 363,408.47 : x
  2. Step 2: Convert to fraction form
    649,889.07/896,871.39 = 363,408.47/x
  3. Step 3: Cross multiply
    649,889.07x = 896,871.39 × 363,408.47
  4. Step 4: Simplify right side
    649,889.07x = 325,930,662,187.70
  5. Step 5: Solve for x
    x = 325,930,662,187.70/649,889.07
  6. Step 6: Final answer
    x = 501,517.38

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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.