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Finding the Fourth Proportional to 407,796.40, 611,694.60 and 407,796.40

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Solution

The fourth proportional to 407,796.40, 611,694.60 and 407,796.40 is: 611,694.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,796.40 : 611,694.60 = 407,796.40 : x
  2. Step 2: Convert to fraction form
    407,796.40/611,694.60 = 407,796.40/x
  3. Step 3: Cross multiply
    407,796.40x = 611,694.60 × 407,796.40
  4. Step 4: Simplify right side
    407,796.40x = 249,446,855,779.44
  5. Step 5: Solve for x
    x = 249,446,855,779.44/407,796.40
  6. Step 6: Final answer
    x = 611,694.60

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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.