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Finding the Fourth Proportional to 911,859.68, 1,367,790.59 and 237,940.49

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Solution

The fourth proportional to 911,859.68, 1,367,790.59 and 237,940.49 is: 356,911.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    911,859.68 : 1,367,790.59 = 237,940.49 : x
  2. Step 2: Convert to fraction form
    911,859.68/1,367,790.59 = 237,940.49/x
  3. Step 3: Cross multiply
    911,859.68x = 1,367,790.59 × 237,940.49
  4. Step 4: Simplify right side
    911,859.68x = 325,452,756,957.89
  5. Step 5: Solve for x
    x = 325,452,756,957.89/911,859.68
  6. Step 6: Final answer
    x = 356,911.01

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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.