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Finding the Fourth Proportional to 881,674.40, 1,216,193.92 and 554,468.42

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Solution

The fourth proportional to 881,674.40, 1,216,193.92 and 554,468.42 is: 764,841.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    881,674.40 : 1,216,193.92 = 554,468.42 : x
  2. Step 2: Convert to fraction form
    881,674.40/1,216,193.92 = 554,468.42/x
  3. Step 3: Cross multiply
    881,674.40x = 1,216,193.92 × 554,468.42
  4. Step 4: Simplify right side
    881,674.40x = 674,341,122,890.32
  5. Step 5: Solve for x
    x = 674,341,122,890.32/881,674.40
  6. Step 6: Final answer
    x = 764,841.44

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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.