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Finding the Fourth Proportional to 354,140.02, 488,706.78 and 192,996.46

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Solution

The fourth proportional to 354,140.02, 488,706.78 and 192,996.46 is: 266,331.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,140.02 : 488,706.78 = 192,996.46 : x
  2. Step 2: Convert to fraction form
    354,140.02/488,706.78 = 192,996.46/x
  3. Step 3: Cross multiply
    354,140.02x = 488,706.78 × 192,996.46
  4. Step 4: Simplify right side
    354,140.02x = 94,318,678,518.00
  5. Step 5: Solve for x
    x = 94,318,678,518.00/354,140.02
  6. Step 6: Final answer
    x = 266,331.60

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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.