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Finding the Fourth Proportional to 692,925.76, 949,292.30 and 667,020.70

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Solution

The fourth proportional to 692,925.76, 949,292.30 and 667,020.70 is: 913,802.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,925.76 : 949,292.30 = 667,020.70 : x
  2. Step 2: Convert to fraction form
    692,925.76/949,292.30 = 667,020.70/x
  3. Step 3: Cross multiply
    692,925.76x = 949,292.30 × 667,020.70
  4. Step 4: Simplify right side
    692,925.76x = 633,197,614,450.61
  5. Step 5: Solve for x
    x = 633,197,614,450.61/692,925.76
  6. Step 6: Final answer
    x = 913,802.97

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.