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Finding the Fourth Proportional to 575,917.20, 863,616.60 and 260,211.60

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Solution

The fourth proportional to 575,917.20, 863,616.60 and 260,211.60 is: 390,200.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,917.20 : 863,616.60 = 260,211.60 : x
  2. Step 2: Convert to fraction form
    575,917.20/863,616.60 = 260,211.60/x
  3. Step 3: Cross multiply
    575,917.20x = 863,616.60 × 260,211.60
  4. Step 4: Simplify right side
    575,917.20x = 224,723,057,272.56
  5. Step 5: Solve for x
    x = 224,723,057,272.56/575,917.20
  6. Step 6: Final answer
    x = 390,200.29

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1.5x scale

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.