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Finding the Fourth Proportional to 462,235.19, 638,080.97 and 281,004.98

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Solution

The fourth proportional to 462,235.19, 638,080.97 and 281,004.98 is: 387,906.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    462,235.19 : 638,080.97 = 281,004.98 : x
  2. Step 2: Convert to fraction form
    462,235.19/638,080.97 = 281,004.98/x
  3. Step 3: Cross multiply
    462,235.19x = 638,080.97 × 281,004.98
  4. Step 4: Simplify right side
    462,235.19x = 179,303,925,617.80
  5. Step 5: Solve for x
    x = 179,303,925,617.80/462,235.19
  6. Step 6: Final answer
    x = 387,906.27

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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.