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Finding the Fourth Proportional to 304,001.20, 455,345.70 and 251,513.20

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Solution

The fourth proportional to 304,001.20, 455,345.70 and 251,513.20 is: 376,726.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,001.20 : 455,345.70 = 251,513.20 : x
  2. Step 2: Convert to fraction form
    304,001.20/455,345.70 = 251,513.20/x
  3. Step 3: Cross multiply
    304,001.20x = 455,345.70 × 251,513.20
  4. Step 4: Simplify right side
    304,001.20x = 114,525,454,113.24
  5. Step 5: Solve for x
    x = 114,525,454,113.24/304,001.20
  6. Step 6: Final answer
    x = 376,726.98

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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.