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Finding the Fourth Proportional to 556,717.28, 768,267.28 and 302,067.84

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Solution

The fourth proportional to 556,717.28, 768,267.28 and 302,067.84 is: 416,852.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,717.28 : 768,267.28 = 302,067.84 : x
  2. Step 2: Convert to fraction form
    556,717.28/768,267.28 = 302,067.84/x
  3. Step 3: Cross multiply
    556,717.28x = 768,267.28 × 302,067.84
  4. Step 4: Simplify right side
    556,717.28x = 232,068,837,812.28
  5. Step 5: Solve for x
    x = 232,068,837,812.28/556,717.28
  6. Step 6: Final answer
    x = 416,852.23

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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.