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Finding the Fourth Proportional to 403,799.20, 605,698.80 and 401,034.40

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Solution

The fourth proportional to 403,799.20, 605,698.80 and 401,034.40 is: 601,551.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,799.20 : 605,698.80 = 401,034.40 : x
  2. Step 2: Convert to fraction form
    403,799.20/605,698.80 = 401,034.40/x
  3. Step 3: Cross multiply
    403,799.20x = 605,698.80 × 401,034.40
  4. Step 4: Simplify right side
    403,799.20x = 242,906,054,838.72
  5. Step 5: Solve for x
    x = 242,906,054,838.72/403,799.20
  6. Step 6: Final answer
    x = 601,551.60

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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.