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Finding the Fourth Proportional to 358,713.78, 495,028.31 and 197,569.41

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Solution

The fourth proportional to 358,713.78, 495,028.31 and 197,569.41 is: 272,647.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,713.78 : 495,028.31 = 197,569.41 : x
  2. Step 2: Convert to fraction form
    358,713.78/495,028.31 = 197,569.41/x
  3. Step 3: Cross multiply
    358,713.78x = 495,028.31 × 197,569.41
  4. Step 4: Simplify right side
    358,713.78x = 97,802,450,152.15
  5. Step 5: Solve for x
    x = 97,802,450,152.15/358,713.78
  6. Step 6: Final answer
    x = 272,647.60

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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.