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Finding the Fourth Proportional to 304,031.40, 455,456.52 and 146,370.48

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Solution

The fourth proportional to 304,031.40, 455,456.52 and 146,370.48 is: 219,271.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,031.40 : 455,456.52 = 146,370.48 : x
  2. Step 2: Convert to fraction form
    304,031.40/455,456.52 = 146,370.48/x
  3. Step 3: Cross multiply
    304,031.40x = 455,456.52 × 146,370.48
  4. Step 4: Simplify right side
    304,031.40x = 66,665,389,451.53
  5. Step 5: Solve for x
    x = 66,665,389,451.53/304,031.40
  6. Step 6: Final answer
    x = 219,271.40

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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.