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Finding the Fourth Proportional to 365,720.60, 547,511.70 and 260,744.60

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Solution

The fourth proportional to 365,720.60, 547,511.70 and 260,744.60 is: 390,354.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    365,720.60 : 547,511.70 = 260,744.60 : x
  2. Step 2: Convert to fraction form
    365,720.60/547,511.70 = 260,744.60/x
  3. Step 3: Cross multiply
    365,720.60x = 547,511.70 × 260,744.60
  4. Step 4: Simplify right side
    365,720.60x = 142,760,719,211.82
  5. Step 5: Solve for x
    x = 142,760,719,211.82/365,720.60
  6. Step 6: Final answer
    x = 390,354.60

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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.