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Finding the Fourth Proportional to 427,612.10, 590,120.44 and 276,709.10

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Solution

The fourth proportional to 427,612.10, 590,120.44 and 276,709.10 is: 381,868.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,612.10 : 590,120.44 = 276,709.10 : x
  2. Step 2: Convert to fraction form
    427,612.10/590,120.44 = 276,709.10/x
  3. Step 3: Cross multiply
    427,612.10x = 590,120.44 × 276,709.10
  4. Step 4: Simplify right side
    427,612.10x = 163,291,692,201.63
  5. Step 5: Solve for x
    x = 163,291,692,201.63/427,612.10
  6. Step 6: Final answer
    x = 381,868.74

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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.