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Finding the Fourth Proportional to 304,208.61, 455,356.17 and 208,880.93

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Solution

The fourth proportional to 304,208.61, 455,356.17 and 208,880.93 is: 312,664.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,208.61 : 455,356.17 = 208,880.93 : x
  2. Step 2: Convert to fraction form
    304,208.61/455,356.17 = 208,880.93/x
  3. Step 3: Cross multiply
    304,208.61x = 455,356.17 × 208,880.93
  4. Step 4: Simplify right side
    304,208.61x = 95,115,217,994.06
  5. Step 5: Solve for x
    x = 95,115,217,994.06/304,208.61
  6. Step 6: Final answer
    x = 312,664.45

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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.