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Finding the Fourth Proportional to 669,944.64, 924,575.04 and 383,554.56

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Solution

The fourth proportional to 669,944.64, 924,575.04 and 383,554.56 is: 529,334.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,944.64 : 924,575.04 = 383,554.56 : x
  2. Step 2: Convert to fraction form
    669,944.64/924,575.04 = 383,554.56/x
  3. Step 3: Cross multiply
    669,944.64x = 924,575.04 × 383,554.56
  4. Step 4: Simplify right side
    669,944.64x = 354,624,972,654.18
  5. Step 5: Solve for x
    x = 354,624,972,654.18/669,944.64
  6. Step 6: Final answer
    x = 529,334.74

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Double scale
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Similar ratio
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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.