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Finding the Fourth Proportional to 1,364,765, 1,882,767.12 and 791,472.92

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Solution

The fourth proportional to 1,364,765, 1,882,767.12 and 791,472.92 is: 1,091,879.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,364,765 : 1,882,767.12 = 791,472.92 : x
  2. Step 2: Convert to fraction form
    1,364,765/1,882,767.12 = 791,472.92/x
  3. Step 3: Cross multiply
    1,364,765x = 1,882,767.12 × 791,472.92
  4. Step 4: Simplify right side
    1,364,765x = 1,490,159,190,146.39
  5. Step 5: Solve for x
    x = 1,490,159,190,146.39/1,364,765
  6. Step 6: Final answer
    x = 1,091,879.69

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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.