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Finding the Fourth Proportional to 304,477.20, 427,201.20 and 304,477.20

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Solution

The fourth proportional to 304,477.20, 427,201.20 and 304,477.20 is: 427,201.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,477.20 : 427,201.20 = 304,477.20 : x
  2. Step 2: Convert to fraction form
    304,477.20/427,201.20 = 304,477.20/x
  3. Step 3: Cross multiply
    304,477.20x = 427,201.20 × 304,477.20
  4. Step 4: Simplify right side
    304,477.20x = 130,073,025,212.64
  5. Step 5: Solve for x
    x = 130,073,025,212.64/304,477.20
  6. Step 6: Final answer
    x = 427,201.20

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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.