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Finding the Fourth Proportional to 526,615.32, 726,816 and 322,779.60

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Solution

The fourth proportional to 526,615.32, 726,816 and 322,779.60 is: 445,489.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,615.32 : 726,816 = 322,779.60 : x
  2. Step 2: Convert to fraction form
    526,615.32/726,816 = 322,779.60/x
  3. Step 3: Cross multiply
    526,615.32x = 726,816 × 322,779.60
  4. Step 4: Simplify right side
    526,615.32x = 234,601,377,753.60
  5. Step 5: Solve for x
    x = 234,601,377,753.60/526,615.32
  6. Step 6: Final answer
    x = 445,489.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.