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Finding the Fourth Proportional to 304,422.20, 427,124.20 and 304,422.20

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Solution

The fourth proportional to 304,422.20, 427,124.20 and 304,422.20 is: 427,124.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,422.20 : 427,124.20 = 304,422.20 : x
  2. Step 2: Convert to fraction form
    304,422.20/427,124.20 = 304,422.20/x
  3. Step 3: Cross multiply
    304,422.20x = 427,124.20 × 304,422.20
  4. Step 4: Simplify right side
    304,422.20x = 130,026,088,637.24
  5. Step 5: Solve for x
    x = 130,026,088,637.24/304,422.20
  6. Step 6: Final answer
    x = 427,124.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.