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Finding the Fourth Proportional to 526,453.32, 726,505.70 and 297,059.30

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Solution

The fourth proportional to 526,453.32, 726,505.70 and 297,059.30 is: 409,941.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,453.32 : 726,505.70 = 297,059.30 : x
  2. Step 2: Convert to fraction form
    526,453.32/726,505.70 = 297,059.30/x
  3. Step 3: Cross multiply
    526,453.32x = 726,505.70 × 297,059.30
  4. Step 4: Simplify right side
    526,453.32x = 215,815,269,570.19
  5. Step 5: Solve for x
    x = 215,815,269,570.19/526,453.32
  6. Step 6: Final answer
    x = 409,941.89

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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.