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Finding the Fourth Proportional to 675,309.68, 931,015.40 and 433,171.92

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Solution

The fourth proportional to 675,309.68, 931,015.40 and 433,171.92 is: 597,192.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    675,309.68 : 931,015.40 = 433,171.92 : x
  2. Step 2: Convert to fraction form
    675,309.68/931,015.40 = 433,171.92/x
  3. Step 3: Cross multiply
    675,309.68x = 931,015.40 × 433,171.92
  4. Step 4: Simplify right side
    675,309.68x = 403,289,728,367.57
  5. Step 5: Solve for x
    x = 403,289,728,367.57/675,309.68
  6. Step 6: Final answer
    x = 597,192.28

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1.5x scale

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.