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Finding the Fourth Proportional to 354,154.91, 488,734.20 and 193,010.13

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Solution

The fourth proportional to 354,154.91, 488,734.20 and 193,010.13 is: 266,354.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,154.91 : 488,734.20 = 193,010.13 : x
  2. Step 2: Convert to fraction form
    354,154.91/488,734.20 = 193,010.13/x
  3. Step 3: Cross multiply
    354,154.91x = 488,734.20 × 193,010.13
  4. Step 4: Simplify right side
    354,154.91x = 94,330,651,477.45
  5. Step 5: Solve for x
    x = 94,330,651,477.45/354,154.91
  6. Step 6: Final answer
    x = 266,354.21

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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.