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Finding the Fourth Proportional to 495,181.95, 683,353.88 and 291,241.46

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Solution

The fourth proportional to 495,181.95, 683,353.88 and 291,241.46 is: 401,914.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,181.95 : 683,353.88 = 291,241.46 : x
  2. Step 2: Convert to fraction form
    495,181.95/683,353.88 = 291,241.46/x
  3. Step 3: Cross multiply
    495,181.95x = 683,353.88 × 291,241.46
  4. Step 4: Simplify right side
    495,181.95x = 199,020,980,251.66
  5. Step 5: Solve for x
    x = 199,020,980,251.66/495,181.95
  6. Step 6: Final answer
    x = 401,914.86

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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.