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Finding the Fourth Proportional to 502,682.79, 693,684.68 and 276,326.67

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Solution

The fourth proportional to 502,682.79, 693,684.68 and 276,326.67 is: 381,321.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,682.79 : 693,684.68 = 276,326.67 : x
  2. Step 2: Convert to fraction form
    502,682.79/693,684.68 = 276,326.67/x
  3. Step 3: Cross multiply
    502,682.79x = 693,684.68 × 276,326.67
  4. Step 4: Simplify right side
    502,682.79x = 191,683,577,654.42
  5. Step 5: Solve for x
    x = 191,683,577,654.42/502,682.79
  6. Step 6: Final answer
    x = 381,321.15

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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.