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Finding the Fourth Proportional to 441,097.80, 661,646.70 and 402,606.60

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Solution

The fourth proportional to 441,097.80, 661,646.70 and 402,606.60 is: 603,909.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    441,097.80 : 661,646.70 = 402,606.60 : x
  2. Step 2: Convert to fraction form
    441,097.80/661,646.70 = 402,606.60/x
  3. Step 3: Cross multiply
    441,097.80x = 661,646.70 × 402,606.60
  4. Step 4: Simplify right side
    441,097.80x = 266,383,328,288.22
  5. Step 5: Solve for x
    x = 266,383,328,288.22/441,097.80
  6. Step 6: Final answer
    x = 603,909.90

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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.