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Finding the Fourth Proportional to 976,267.32, 1,465,436.16 and 864,672

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Solution

The fourth proportional to 976,267.32, 1,465,436.16 and 864,672 is: 1,297,924.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    976,267.32 : 1,465,436.16 = 864,672 : x
  2. Step 2: Convert to fraction form
    976,267.32/1,465,436.16 = 864,672/x
  3. Step 3: Cross multiply
    976,267.32x = 1,465,436.16 × 864,672
  4. Step 4: Simplify right side
    976,267.32x = 1,267,121,615,339.52
  5. Step 5: Solve for x
    x = 1,267,121,615,339.52/976,267.32
  6. Step 6: Final answer
    x = 1,297,924.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.