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Finding the Fourth Proportional to 529.46, 792.90 and 374.65

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Solution

The fourth proportional to 529.46, 792.90 and 374.65 is: 561.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    529.46 : 792.90 = 374.65 : x
  2. Step 2: Convert to fraction form
    529.46/792.90 = 374.65/x
  3. Step 3: Cross multiply
    529.46x = 792.90 × 374.65
  4. Step 4: Simplify right side
    529.46x = 297,056.02
  5. Step 5: Solve for x
    x = 297,056.02/529.46
  6. Step 6: Final answer
    x = 561.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.