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Finding the Fourth Proportional to 383,776.72, 529,598.92 and 211,701.56

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Solution

The fourth proportional to 383,776.72, 529,598.92 and 211,701.56 is: 292,141.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,776.72 : 529,598.92 = 211,701.56 : x
  2. Step 2: Convert to fraction form
    383,776.72/529,598.92 = 211,701.56/x
  3. Step 3: Cross multiply
    383,776.72x = 529,598.92 × 211,701.56
  4. Step 4: Simplify right side
    383,776.72x = 112,116,917,538.32
  5. Step 5: Solve for x
    x = 112,116,917,538.32/383,776.72
  6. Step 6: Final answer
    x = 292,141.01

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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.