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Finding the Fourth Proportional to 354,211.52, 488,812.19 and 193,063.32

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Solution

The fourth proportional to 354,211.52, 488,812.19 and 193,063.32 is: 266,427.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,211.52 : 488,812.19 = 193,063.32 : x
  2. Step 2: Convert to fraction form
    354,211.52/488,812.19 = 193,063.32/x
  3. Step 3: Cross multiply
    354,211.52x = 488,812.19 × 193,063.32
  4. Step 4: Simplify right side
    354,211.52x = 94,371,703,292.55
  5. Step 5: Solve for x
    x = 94,371,703,292.55/354,211.52
  6. Step 6: Final answer
    x = 266,427.54

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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.