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Finding the Fourth Proportional to 556,802.82, 768,717.90 and 366,145.02

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Solution

The fourth proportional to 556,802.82, 768,717.90 and 366,145.02 is: 505,497.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,802.82 : 768,717.90 = 366,145.02 : x
  2. Step 2: Convert to fraction form
    556,802.82/768,717.90 = 366,145.02/x
  3. Step 3: Cross multiply
    556,802.82x = 768,717.90 × 366,145.02
  4. Step 4: Simplify right side
    556,802.82x = 281,462,230,869.86
  5. Step 5: Solve for x
    x = 281,462,230,869.86/556,802.82
  6. Step 6: Final answer
    x = 505,497.14

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.