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Finding the Fourth Proportional to 559,355.12, 838,285.28 and 204,035.12

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Solution

The fourth proportional to 559,355.12, 838,285.28 and 204,035.12 is: 305,780.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,355.12 : 838,285.28 = 204,035.12 : x
  2. Step 2: Convert to fraction form
    559,355.12/838,285.28 = 204,035.12/x
  3. Step 3: Cross multiply
    559,355.12x = 838,285.28 × 204,035.12
  4. Step 4: Simplify right side
    559,355.12x = 171,039,637,699.03
  5. Step 5: Solve for x
    x = 171,039,637,699.03/559,355.12
  6. Step 6: Final answer
    x = 305,780.05

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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.