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Finding the Fourth Proportional to 316,703.79, 437,059.73 and 178,871.66

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Solution

The fourth proportional to 316,703.79, 437,059.73 and 178,871.66 is: 246,847.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,703.79 : 437,059.73 = 178,871.66 : x
  2. Step 2: Convert to fraction form
    316,703.79/437,059.73 = 178,871.66/x
  3. Step 3: Cross multiply
    316,703.79x = 437,059.73 × 178,871.66
  4. Step 4: Simplify right side
    316,703.79x = 78,177,598,529.89
  5. Step 5: Solve for x
    x = 78,177,598,529.89/316,703.79
  6. Step 6: Final answer
    x = 246,847.69

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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.