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Finding the Fourth Proportional to 474,707.80, 655,080.45 and 270,824.72

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Solution

The fourth proportional to 474,707.80, 655,080.45 and 270,824.72 is: 373,728.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,707.80 : 655,080.45 = 270,824.72 : x
  2. Step 2: Convert to fraction form
    474,707.80/655,080.45 = 270,824.72/x
  3. Step 3: Cross multiply
    474,707.80x = 655,080.45 × 270,824.72
  4. Step 4: Simplify right side
    474,707.80x = 177,411,979,448.72
  5. Step 5: Solve for x
    x = 177,411,979,448.72/474,707.80
  6. Step 6: Final answer
    x = 373,728.81

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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.