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Finding the Fourth Proportional to 571,431.45, 857,267.06 and 216,437.61

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Solution

The fourth proportional to 571,431.45, 857,267.06 and 216,437.61 is: 324,701.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,431.45 : 857,267.06 = 216,437.61 : x
  2. Step 2: Convert to fraction form
    571,431.45/857,267.06 = 216,437.61/x
  3. Step 3: Cross multiply
    571,431.45x = 857,267.06 × 216,437.61
  4. Step 4: Simplify right side
    571,431.45x = 185,544,832,515.94
  5. Step 5: Solve for x
    x = 185,544,832,515.94/571,431.45
  6. Step 6: Final answer
    x = 324,701.82

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1.5x scale

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.