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Finding the Fourth Proportional to 322,798,095.66, 445,598,823.22 and 217,012,862.54

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Solution

The fourth proportional to 322,798,095.66, 445,598,823.22 and 217,012,862.54 is: 299,570,156.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,798,095.66 : 445,598,823.22 = 217,012,862.54 : x
  2. Step 2: Convert to fraction form
    322,798,095.66/445,598,823.22 = 217,012,862.54/x
  3. Step 3: Cross multiply
    322,798,095.66x = 445,598,823.22 × 217,012,862.54
  4. Step 4: Simplify right side
    322,798,095.66x = 96,700,676,171,427,616
  5. Step 5: Solve for x
    x = 96,700,676,171,427,616/322,798,095.66
  6. Step 6: Final answer
    x = 299,570,156.92

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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.