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Finding the Fourth Proportional to 556,770.80, 835,156.20 and 415,053.20

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Solution

The fourth proportional to 556,770.80, 835,156.20 and 415,053.20 is: 622,579.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,770.80 : 835,156.20 = 415,053.20 : x
  2. Step 2: Convert to fraction form
    556,770.80/835,156.20 = 415,053.20/x
  3. Step 3: Cross multiply
    556,770.80x = 835,156.20 × 415,053.20
  4. Step 4: Simplify right side
    556,770.80x = 346,634,253,309.84
  5. Step 5: Solve for x
    x = 346,634,253,309.84/556,770.80
  6. Step 6: Final answer
    x = 622,579.80

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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.