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Finding the Fourth Proportional to 403,936.30, 605,904.45 and 403,936.30

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Solution

The fourth proportional to 403,936.30, 605,904.45 and 403,936.30 is: 605,904.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,936.30 : 605,904.45 = 403,936.30 : x
  2. Step 2: Convert to fraction form
    403,936.30/605,904.45 = 403,936.30/x
  3. Step 3: Cross multiply
    403,936.30x = 605,904.45 × 403,936.30
  4. Step 4: Simplify right side
    403,936.30x = 244,746,801,686.54
  5. Step 5: Solve for x
    x = 244,746,801,686.54/403,936.30
  6. Step 6: Final answer
    x = 605,904.45

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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.