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Finding the Fourth Proportional to 316,339.84, 436,535.04 and 193,794.76

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Solution

The fourth proportional to 316,339.84, 436,535.04 and 193,794.76 is: 267,428.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,339.84 : 436,535.04 = 193,794.76 : x
  2. Step 2: Convert to fraction form
    316,339.84/436,535.04 = 193,794.76/x
  3. Step 3: Cross multiply
    316,339.84x = 436,535.04 × 193,794.76
  4. Step 4: Simplify right side
    316,339.84x = 84,598,203,308.39
  5. Step 5: Solve for x
    x = 84,598,203,308.39/316,339.84
  6. Step 6: Final answer
    x = 267,428.23

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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.