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Finding the Fourth Proportional to 357,856.55, 494,011.12 and 227,099.93

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Solution

The fourth proportional to 357,856.55, 494,011.12 and 227,099.93 is: 313,505.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,856.55 : 494,011.12 = 227,099.93 : x
  2. Step 2: Convert to fraction form
    357,856.55/494,011.12 = 227,099.93/x
  3. Step 3: Cross multiply
    357,856.55x = 494,011.12 × 227,099.93
  4. Step 4: Simplify right side
    357,856.55x = 112,189,890,771.22
  5. Step 5: Solve for x
    x = 112,189,890,771.22/357,856.55
  6. Step 6: Final answer
    x = 313,505.21

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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.