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Finding the Fourth Proportional to 462,571.55, 638,373.11 and 281,253.45

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Solution

The fourth proportional to 462,571.55, 638,373.11 and 281,253.45 is: 388,144.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    462,571.55 : 638,373.11 = 281,253.45 : x
  2. Step 2: Convert to fraction form
    462,571.55/638,373.11 = 281,253.45/x
  3. Step 3: Cross multiply
    462,571.55x = 638,373.11 × 281,253.45
  4. Step 4: Simplify right side
    462,571.55x = 179,544,638,168.46
  5. Step 5: Solve for x
    x = 179,544,638,168.46/462,571.55
  6. Step 6: Final answer
    x = 388,144.58

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1.5x scale

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.