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Finding the Fourth Proportional to 575,636.20, 863,446.20 and 260,092.60

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Solution

The fourth proportional to 575,636.20, 863,446.20 and 260,092.60 is: 390,135.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,636.20 : 863,446.20 = 260,092.60 : x
  2. Step 2: Convert to fraction form
    575,636.20/863,446.20 = 260,092.60/x
  3. Step 3: Cross multiply
    575,636.20x = 863,446.20 × 260,092.60
  4. Step 4: Simplify right side
    575,636.20x = 224,575,967,118.12
  5. Step 5: Solve for x
    x = 224,575,967,118.12/575,636.20
  6. Step 6: Final answer
    x = 390,135.24

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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.