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Finding the Fourth Proportional to 317,404.84, 475,856.74 and 157,370.43

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Solution

The fourth proportional to 317,404.84, 475,856.74 and 157,370.43 is: 235,931.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,404.84 : 475,856.74 = 157,370.43 : x
  2. Step 2: Convert to fraction form
    317,404.84/475,856.74 = 157,370.43/x
  3. Step 3: Cross multiply
    317,404.84x = 475,856.74 × 157,370.43
  4. Step 4: Simplify right side
    317,404.84x = 74,885,781,773.37
  5. Step 5: Solve for x
    x = 74,885,781,773.37/317,404.84
  6. Step 6: Final answer
    x = 235,931.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.