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Finding the Fourth Proportional to 440,893.81, 661,308.60 and 197,810.16

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Solution

The fourth proportional to 440,893.81, 661,308.60 and 197,810.16 is: 296,700.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,893.81 : 661,308.60 = 197,810.16 : x
  2. Step 2: Convert to fraction form
    440,893.81/661,308.60 = 197,810.16/x
  3. Step 3: Cross multiply
    440,893.81x = 661,308.60 × 197,810.16
  4. Step 4: Simplify right side
    440,893.81x = 130,813,557,124.58
  5. Step 5: Solve for x
    x = 130,813,557,124.58/440,893.81
  6. Step 6: Final answer
    x = 296,700.82

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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.