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Finding the Fourth Proportional to 893,716, 1,340,151.66 and 324,700.36

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Solution

The fourth proportional to 893,716, 1,340,151.66 and 324,700.36 is: 486,897.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    893,716 : 1,340,151.66 = 324,700.36 : x
  2. Step 2: Convert to fraction form
    893,716/1,340,151.66 = 324,700.36/x
  3. Step 3: Cross multiply
    893,716x = 1,340,151.66 × 324,700.36
  4. Step 4: Simplify right side
    893,716x = 435,147,726,456.60
  5. Step 5: Solve for x
    x = 435,147,726,456.60/893,716
  6. Step 6: Final answer
    x = 486,897.10

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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.