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Finding the Fourth Proportional to 1,936.02, 2,904.05 and 619.79

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Solution

The fourth proportional to 1,936.02, 2,904.05 and 619.79 is: 929.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,936.02 : 2,904.05 = 619.79 : x
  2. Step 2: Convert to fraction form
    1,936.02/2,904.05 = 619.79/x
  3. Step 3: Cross multiply
    1,936.02x = 2,904.05 × 619.79
  4. Step 4: Simplify right side
    1,936.02x = 1,799,904.51
  5. Step 5: Solve for x
    x = 1,799,904.51/1,936.02
  6. Step 6: Final answer
    x = 929.69

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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.