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Finding the Fourth Proportional to 571,429.95, 857,264.81 and 216,436.11

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Solution

The fourth proportional to 571,429.95, 857,264.81 and 216,436.11 is: 324,699.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,429.95 : 857,264.81 = 216,436.11 : x
  2. Step 2: Convert to fraction form
    571,429.95/857,264.81 = 216,436.11/x
  3. Step 3: Cross multiply
    571,429.95x = 857,264.81 × 216,436.11
  4. Step 4: Simplify right side
    571,429.95x = 185,543,059,634.11
  5. Step 5: Solve for x
    x = 185,543,059,634.11/571,429.95
  6. Step 6: Final answer
    x = 324,699.57

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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.