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Finding the Fourth Proportional to 354,139.52, 488,698.33 and 192,991.12

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Solution

The fourth proportional to 354,139.52, 488,698.33 and 192,991.12 is: 266,320.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,139.52 : 488,698.33 = 192,991.12 : x
  2. Step 2: Convert to fraction form
    354,139.52/488,698.33 = 192,991.12/x
  3. Step 3: Cross multiply
    354,139.52x = 488,698.33 × 192,991.12
  4. Step 4: Simplify right side
    354,139.52x = 94,314,438,048.83
  5. Step 5: Solve for x
    x = 94,314,438,048.83/354,139.52
  6. Step 6: Final answer
    x = 266,320.00

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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.