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Finding the Fourth Proportional to 678,035.88, 935,818.52 and 448,597.71

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Solution

The fourth proportional to 678,035.88, 935,818.52 and 448,597.71 is: 619,150.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,035.88 : 935,818.52 = 448,597.71 : x
  2. Step 2: Convert to fraction form
    678,035.88/935,818.52 = 448,597.71/x
  3. Step 3: Cross multiply
    678,035.88x = 935,818.52 × 448,597.71
  4. Step 4: Simplify right side
    678,035.88x = 419,806,042,804.60
  5. Step 5: Solve for x
    x = 419,806,042,804.60/678,035.88
  6. Step 6: Final answer
    x = 619,150.19

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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.