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Finding the Fourth Proportional to 351,529.97, 485,110.95 and 190,384.93

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Solution

The fourth proportional to 351,529.97, 485,110.95 and 190,384.93 is: 262,730.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,529.97 : 485,110.95 = 190,384.93 : x
  2. Step 2: Convert to fraction form
    351,529.97/485,110.95 = 190,384.93/x
  3. Step 3: Cross multiply
    351,529.97x = 485,110.95 × 190,384.93
  4. Step 4: Simplify right side
    351,529.97x = 92,357,812,331.26
  5. Step 5: Solve for x
    x = 92,357,812,331.26/351,529.97
  6. Step 6: Final answer
    x = 262,730.97

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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.