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Finding the Fourth Proportional to 472,762.71, 655,172.57 and 463,791.15

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Solution

The fourth proportional to 472,762.71, 655,172.57 and 463,791.15 is: 642,739.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,762.71 : 655,172.57 = 463,791.15 : x
  2. Step 2: Convert to fraction form
    472,762.71/655,172.57 = 463,791.15/x
  3. Step 3: Cross multiply
    472,762.71x = 655,172.57 × 463,791.15
  4. Step 4: Simplify right side
    472,762.71x = 303,863,240,848.23
  5. Step 5: Solve for x
    x = 303,863,240,848.23/472,762.71
  6. Step 6: Final answer
    x = 642,739.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.