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Finding the Fourth Proportional to 304,075.71, 455,621.09 and 185,388.03

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Solution

The fourth proportional to 304,075.71, 455,621.09 and 185,388.03 is: 277,781.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,075.71 : 455,621.09 = 185,388.03 : x
  2. Step 2: Convert to fraction form
    304,075.71/455,621.09 = 185,388.03/x
  3. Step 3: Cross multiply
    304,075.71x = 455,621.09 × 185,388.03
  4. Step 4: Simplify right side
    304,075.71x = 84,466,695,374.61
  5. Step 5: Solve for x
    x = 84,466,695,374.61/304,075.71
  6. Step 6: Final answer
    x = 277,781.79

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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.