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Finding the Fourth Proportional to 348,612.16, 481,078.80 and 195,653.92

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Solution

The fourth proportional to 348,612.16, 481,078.80 and 195,653.92 is: 269,999.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,612.16 : 481,078.80 = 195,653.92 : x
  2. Step 2: Convert to fraction form
    348,612.16/481,078.80 = 195,653.92/x
  3. Step 3: Cross multiply
    348,612.16x = 481,078.80 × 195,653.92
  4. Step 4: Simplify right side
    348,612.16x = 94,124,953,048.90
  5. Step 5: Solve for x
    x = 94,124,953,048.90/348,612.16
  6. Step 6: Final answer
    x = 269,999.05

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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.