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Finding the Fourth Proportional to 494,185.75, 740,431.55 and 331,775.62

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Solution

The fourth proportional to 494,185.75, 740,431.55 and 331,775.62 is: 497,094.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,185.75 : 740,431.55 = 331,775.62 : x
  2. Step 2: Convert to fraction form
    494,185.75/740,431.55 = 331,775.62/x
  3. Step 3: Cross multiply
    494,185.75x = 740,431.55 × 331,775.62
  4. Step 4: Simplify right side
    494,185.75x = 245,657,135,547.17
  5. Step 5: Solve for x
    x = 245,657,135,547.17/494,185.75
  6. Step 6: Final answer
    x = 497,094.74

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1.5x scale

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.