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Finding the Fourth Proportional to 575,817.20, 863,466.60 and 260,111.60

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Solution

The fourth proportional to 575,817.20, 863,466.60 and 260,111.60 is: 390,050.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,817.20 : 863,466.60 = 260,111.60 : x
  2. Step 2: Convert to fraction form
    575,817.20/863,466.60 = 260,111.60/x
  3. Step 3: Cross multiply
    575,817.20x = 863,466.60 × 260,111.60
  4. Step 4: Simplify right side
    575,817.20x = 224,597,678,872.56
  5. Step 5: Solve for x
    x = 224,597,678,872.56/575,817.20
  6. Step 6: Final answer
    x = 390,050.31

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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.