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Finding the Fourth Proportional to 445,995.71, 669,275.59 and 233,147.76

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Solution

The fourth proportional to 445,995.71, 669,275.59 and 233,147.76 is: 349,869.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,995.71 : 669,275.59 = 233,147.76 : x
  2. Step 2: Convert to fraction form
    445,995.71/669,275.59 = 233,147.76/x
  3. Step 3: Cross multiply
    445,995.71x = 669,275.59 × 233,147.76
  4. Step 4: Simplify right side
    445,995.71x = 156,040,104,631.18
  5. Step 5: Solve for x
    x = 156,040,104,631.18/445,995.71
  6. Step 6: Final answer
    x = 349,869.07

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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.