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Finding the Fourth Proportional to 692,924.76, 949,290.93 and 667,019.70

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Solution

The fourth proportional to 692,924.76, 949,290.93 and 667,019.70 is: 913,801.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,924.76 : 949,290.93 = 667,019.70 : x
  2. Step 2: Convert to fraction form
    692,924.76/949,290.93 = 667,019.70/x
  3. Step 3: Cross multiply
    692,924.76x = 949,290.93 × 667,019.70
  4. Step 4: Simplify right side
    692,924.76x = 633,195,751,341.32
  5. Step 5: Solve for x
    x = 633,195,751,341.32/692,924.76
  6. Step 6: Final answer
    x = 913,801.60

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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.