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Finding the Fourth Proportional to 559,041.20, 838,561.80 and 204,066.80

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Solution

The fourth proportional to 559,041.20, 838,561.80 and 204,066.80 is: 306,100.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,041.20 : 838,561.80 = 204,066.80 : x
  2. Step 2: Convert to fraction form
    559,041.20/838,561.80 = 204,066.80/x
  3. Step 3: Cross multiply
    559,041.20x = 838,561.80 × 204,066.80
  4. Step 4: Simplify right side
    559,041.20x = 171,122,623,128.24
  5. Step 5: Solve for x
    x = 171,122,623,128.24/559,041.20
  6. Step 6: Final answer
    x = 306,100.20

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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.