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Finding the Fourth Proportional to 353,076.92, 529,605.59 and 128,441.51

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Solution

The fourth proportional to 353,076.92, 529,605.59 and 128,441.51 is: 192,658.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,076.92 : 529,605.59 = 128,441.51 : x
  2. Step 2: Convert to fraction form
    353,076.92/529,605.59 = 128,441.51/x
  3. Step 3: Cross multiply
    353,076.92x = 529,605.59 × 128,441.51
  4. Step 4: Simplify right side
    353,076.92x = 68,023,338,393.81
  5. Step 5: Solve for x
    x = 68,023,338,393.81/353,076.92
  6. Step 6: Final answer
    x = 192,658.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.