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Finding the Fourth Proportional to 276,590.64, 414,911.64 and 214,330.80

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Solution

The fourth proportional to 276,590.64, 414,911.64 and 214,330.80 is: 321,516.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,590.64 : 414,911.64 = 214,330.80 : x
  2. Step 2: Convert to fraction form
    276,590.64/414,911.64 = 214,330.80/x
  3. Step 3: Cross multiply
    276,590.64x = 414,911.64 × 214,330.80
  4. Step 4: Simplify right side
    276,590.64x = 88,928,343,730.51
  5. Step 5: Solve for x
    x = 88,928,343,730.51/276,590.64
  6. Step 6: Final answer
    x = 321,516.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.