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Finding the Fourth Proportional to 485,001.84, 669,196.98 and 294,062.16

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Solution

The fourth proportional to 485,001.84, 669,196.98 and 294,062.16 is: 405,741.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,001.84 : 669,196.98 = 294,062.16 : x
  2. Step 2: Convert to fraction form
    485,001.84/669,196.98 = 294,062.16/x
  3. Step 3: Cross multiply
    485,001.84x = 669,196.98 × 294,062.16
  4. Step 4: Simplify right side
    485,001.84x = 196,785,509,404.28
  5. Step 5: Solve for x
    x = 196,785,509,404.28/485,001.84
  6. Step 6: Final answer
    x = 405,741.78

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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.