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Finding the Fourth Proportional to 526,515.45, 726,528.72 and 297,059.32

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Solution

The fourth proportional to 526,515.45, 726,528.72 and 297,059.32 is: 409,906.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,515.45 : 726,528.72 = 297,059.32 : x
  2. Step 2: Convert to fraction form
    526,515.45/726,528.72 = 297,059.32/x
  3. Step 3: Cross multiply
    526,515.45x = 726,528.72 × 297,059.32
  4. Step 4: Simplify right side
    526,515.45x = 215,822,127,523.67
  5. Step 5: Solve for x
    x = 215,822,127,523.67/526,515.45
  6. Step 6: Final answer
    x = 409,906.54

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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.