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Finding the Fourth Proportional to 354,211.38, 488,809.08 and 193,065.93

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Solution

The fourth proportional to 354,211.38, 488,809.08 and 193,065.93 is: 266,429.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,211.38 : 488,809.08 = 193,065.93 : x
  2. Step 2: Convert to fraction form
    354,211.38/488,809.08 = 193,065.93/x
  3. Step 3: Cross multiply
    354,211.38x = 488,809.08 × 193,065.93
  4. Step 4: Simplify right side
    354,211.38x = 94,372,379,622.64
  5. Step 5: Solve for x
    x = 94,372,379,622.64/354,211.38
  6. Step 6: Final answer
    x = 266,429.55

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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.