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Finding the Fourth Proportional to 521,106.57, 780,852.78 and 361,492.92

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Solution

The fourth proportional to 521,106.57, 780,852.78 and 361,492.92 is: 541,679.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,106.57 : 780,852.78 = 361,492.92 : x
  2. Step 2: Convert to fraction form
    521,106.57/780,852.78 = 361,492.92/x
  3. Step 3: Cross multiply
    521,106.57x = 780,852.78 × 361,492.92
  4. Step 4: Simplify right side
    521,106.57x = 282,272,751,532.32
  5. Step 5: Solve for x
    x = 282,272,751,532.32/521,106.57
  6. Step 6: Final answer
    x = 541,679.51

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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.