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Finding the Fourth Proportional to 572,756.80, 859,135.20 and 559,634.80

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Solution

The fourth proportional to 572,756.80, 859,135.20 and 559,634.80 is: 839,452.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,756.80 : 859,135.20 = 559,634.80 : x
  2. Step 2: Convert to fraction form
    572,756.80/859,135.20 = 559,634.80/x
  3. Step 3: Cross multiply
    572,756.80x = 859,135.20 × 559,634.80
  4. Step 4: Simplify right side
    572,756.80x = 480,801,955,824.96
  5. Step 5: Solve for x
    x = 480,801,955,824.96/572,756.80
  6. Step 6: Final answer
    x = 839,452.20

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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.