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Finding the Fourth Proportional to 1,294,704.10, 1,941,278.55 and 664,848.10

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Solution

The fourth proportional to 1,294,704.10, 1,941,278.55 and 664,848.10 is: 996,872.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,294,704.10 : 1,941,278.55 = 664,848.10 : x
  2. Step 2: Convert to fraction form
    1,294,704.10/1,941,278.55 = 664,848.10/x
  3. Step 3: Cross multiply
    1,294,704.10x = 1,941,278.55 × 664,848.10
  4. Step 4: Simplify right side
    1,294,704.10x = 1,290,655,355,538.25
  5. Step 5: Solve for x
    x = 1,290,655,355,538.25/1,294,704.10
  6. Step 6: Final answer
    x = 996,872.84

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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.