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Finding the Fourth Proportional to 675,628.11, 932,378.60 and 369,731.61

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Solution

The fourth proportional to 675,628.11, 932,378.60 and 369,731.61 is: 510,236.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    675,628.11 : 932,378.60 = 369,731.61 : x
  2. Step 2: Convert to fraction form
    675,628.11/932,378.60 = 369,731.61/x
  3. Step 3: Cross multiply
    675,628.11x = 932,378.60 × 369,731.61
  4. Step 4: Simplify right side
    675,628.11x = 344,729,839,058.89
  5. Step 5: Solve for x
    x = 344,729,839,058.89/675,628.11
  6. Step 6: Final answer
    x = 510,236.08

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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.