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Finding the Fourth Proportional to 584,380.80, 876,916.80 and 210,355.20

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Solution

The fourth proportional to 584,380.80, 876,916.80 and 210,355.20 is: 315,657.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    584,380.80 : 876,916.80 = 210,355.20 : x
  2. Step 2: Convert to fraction form
    584,380.80/876,916.80 = 210,355.20/x
  3. Step 3: Cross multiply
    584,380.80x = 876,916.80 × 210,355.20
  4. Step 4: Simplify right side
    584,380.80x = 184,464,008,847.36
  5. Step 5: Solve for x
    x = 184,464,008,847.36/584,380.80
  6. Step 6: Final answer
    x = 315,657.20

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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.