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Finding the Fourth Proportional to 304,847.64, 457,271.51 and 127,257.78

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Solution

The fourth proportional to 304,847.64, 457,271.51 and 127,257.78 is: 190,886.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,847.64 : 457,271.51 = 127,257.78 : x
  2. Step 2: Convert to fraction form
    304,847.64/457,271.51 = 127,257.78/x
  3. Step 3: Cross multiply
    304,847.64x = 457,271.51 × 127,257.78
  4. Step 4: Simplify right side
    304,847.64x = 58,191,357,219.85
  5. Step 5: Solve for x
    x = 58,191,357,219.85/304,847.64
  6. Step 6: Final answer
    x = 190,886.69

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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.