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Finding the Fourth Proportional to 403,350.40, 605,025.60 and 348,054.40

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Solution

The fourth proportional to 403,350.40, 605,025.60 and 348,054.40 is: 522,081.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,350.40 : 605,025.60 = 348,054.40 : x
  2. Step 2: Convert to fraction form
    403,350.40/605,025.60 = 348,054.40/x
  3. Step 3: Cross multiply
    403,350.40x = 605,025.60 × 348,054.40
  4. Step 4: Simplify right side
    403,350.40x = 210,581,822,192.64
  5. Step 5: Solve for x
    x = 210,581,822,192.64/403,350.40
  6. Step 6: Final answer
    x = 522,081.60

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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.