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Finding the Fourth Proportional to 354,331.27, 488,970.57 and 193,187.71

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Solution

The fourth proportional to 354,331.27, 488,970.57 and 193,187.71 is: 266,595.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,331.27 : 488,970.57 = 193,187.71 : x
  2. Step 2: Convert to fraction form
    354,331.27/488,970.57 = 193,187.71/x
  3. Step 3: Cross multiply
    354,331.27x = 488,970.57 × 193,187.71
  4. Step 4: Simplify right side
    354,331.27x = 94,463,104,675.69
  5. Step 5: Solve for x
    x = 94,463,104,675.69/354,331.27
  6. Step 6: Final answer
    x = 266,595.45

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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.