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Finding the Fourth Proportional to 368,147.16, 551,411.28 and 304,243.02

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Solution

The fourth proportional to 368,147.16, 551,411.28 and 304,243.02 is: 455,695.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,147.16 : 551,411.28 = 304,243.02 : x
  2. Step 2: Convert to fraction form
    368,147.16/551,411.28 = 304,243.02/x
  3. Step 3: Cross multiply
    368,147.16x = 551,411.28 × 304,243.02
  4. Step 4: Simplify right side
    368,147.16x = 167,763,033,089.27
  5. Step 5: Solve for x
    x = 167,763,033,089.27/368,147.16
  6. Step 6: Final answer
    x = 455,695.58

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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.