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Finding the Fourth Proportional to 669,896.64, 924,508.80 and 383,506.56

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Solution

The fourth proportional to 669,896.64, 924,508.80 and 383,506.56 is: 529,268.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,896.64 : 924,508.80 = 383,506.56 : x
  2. Step 2: Convert to fraction form
    669,896.64/924,508.80 = 383,506.56/x
  3. Step 3: Cross multiply
    669,896.64x = 924,508.80 × 383,506.56
  4. Step 4: Simplify right side
    669,896.64x = 354,555,189,577.73
  5. Step 5: Solve for x
    x = 354,555,189,577.73/669,896.64
  6. Step 6: Final answer
    x = 529,268.50

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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.