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Finding the Fourth Proportional to 585,533.80, 879,612.90 and 561,622.60

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Solution

The fourth proportional to 585,533.80, 879,612.90 and 561,622.60 is: 843,692.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    585,533.80 : 879,612.90 = 561,622.60 : x
  2. Step 2: Convert to fraction form
    585,533.80/879,612.90 = 561,622.60/x
  3. Step 3: Cross multiply
    585,533.80x = 879,612.90 × 561,622.60
  4. Step 4: Simplify right side
    585,533.80x = 494,010,483,891.54
  5. Step 5: Solve for x
    x = 494,010,483,891.54/585,533.80
  6. Step 6: Final answer
    x = 843,692.51

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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.