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Finding the Fourth Proportional to 669,594.40, 924,199.68 and 383,279.92

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Solution

The fourth proportional to 669,594.40, 924,199.68 and 383,279.92 is: 529,017.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,594.40 : 924,199.68 = 383,279.92 : x
  2. Step 2: Convert to fraction form
    669,594.40/924,199.68 = 383,279.92/x
  3. Step 3: Cross multiply
    669,594.40x = 924,199.68 × 383,279.92
  4. Step 4: Simplify right side
    669,594.40x = 354,227,179,414.43
  5. Step 5: Solve for x
    x = 354,227,179,414.43/669,594.40
  6. Step 6: Final answer
    x = 529,017.54

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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.