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Finding the Fourth Proportional to 504,680.10, 696,474.09 and 289,863.24

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Solution

The fourth proportional to 504,680.10, 696,474.09 and 289,863.24 is: 400,020.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,680.10 : 696,474.09 = 289,863.24 : x
  2. Step 2: Convert to fraction form
    504,680.10/696,474.09 = 289,863.24/x
  3. Step 3: Cross multiply
    504,680.10x = 696,474.09 × 289,863.24
  4. Step 4: Simplify right side
    504,680.10x = 201,882,236,303.45
  5. Step 5: Solve for x
    x = 201,882,236,303.45/504,680.10
  6. Step 6: Final answer
    x = 400,020.20

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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.