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Finding the Fourth Proportional to 866,544.72, 1,195,864.36 and 484,570.64

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Solution

The fourth proportional to 866,544.72, 1,195,864.36 and 484,570.64 is: 668,725.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    866,544.72 : 1,195,864.36 = 484,570.64 : x
  2. Step 2: Convert to fraction form
    866,544.72/1,195,864.36 = 484,570.64/x
  3. Step 3: Cross multiply
    866,544.72x = 1,195,864.36 × 484,570.64
  4. Step 4: Simplify right side
    866,544.72x = 579,480,758,278.39
  5. Step 5: Solve for x
    x = 579,480,758,278.39/866,544.72
  6. Step 6: Final answer
    x = 668,725.74

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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.