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Finding the Fourth Proportional to 354,012.76, 488,535.06 and 192,867.76

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Solution

The fourth proportional to 354,012.76, 488,535.06 and 192,867.76 is: 266,156.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,012.76 : 488,535.06 = 192,867.76 : x
  2. Step 2: Convert to fraction form
    354,012.76/488,535.06 = 192,867.76/x
  3. Step 3: Cross multiply
    354,012.76x = 488,535.06 × 192,867.76
  4. Step 4: Simplify right side
    354,012.76x = 94,222,662,703.67
  5. Step 5: Solve for x
    x = 94,222,662,703.67/354,012.76
  6. Step 6: Final answer
    x = 266,156.12

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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.