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Finding the Fourth Proportional to 621,097.02, 931,842.30 and 221,728.92

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Solution

The fourth proportional to 621,097.02, 931,842.30 and 221,728.92 is: 332,663.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,097.02 : 931,842.30 = 221,728.92 : x
  2. Step 2: Convert to fraction form
    621,097.02/931,842.30 = 221,728.92/x
  3. Step 3: Cross multiply
    621,097.02x = 931,842.30 × 221,728.92
  4. Step 4: Simplify right side
    621,097.02x = 206,616,386,789.32
  5. Step 5: Solve for x
    x = 206,616,386,789.32/621,097.02
  6. Step 6: Final answer
    x = 332,663.63

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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.