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Finding the Fourth Proportional to 451,732.94, 623,392.30 and 247,785.51

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Solution

The fourth proportional to 451,732.94, 623,392.30 and 247,785.51 is: 341,944.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,732.94 : 623,392.30 = 247,785.51 : x
  2. Step 2: Convert to fraction form
    451,732.94/623,392.30 = 247,785.51/x
  3. Step 3: Cross multiply
    451,732.94x = 623,392.30 × 247,785.51
  4. Step 4: Simplify right side
    451,732.94x = 154,467,578,985.57
  5. Step 5: Solve for x
    x = 154,467,578,985.57/451,732.94
  6. Step 6: Final answer
    x = 341,944.47

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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.