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Finding the Fourth Proportional to 403,467.20, 605,200.80 and 373,054.40

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Solution

The fourth proportional to 403,467.20, 605,200.80 and 373,054.40 is: 559,581.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,467.20 : 605,200.80 = 373,054.40 : x
  2. Step 2: Convert to fraction form
    403,467.20/605,200.80 = 373,054.40/x
  3. Step 3: Cross multiply
    403,467.20x = 605,200.80 × 373,054.40
  4. Step 4: Simplify right side
    403,467.20x = 225,772,821,323.52
  5. Step 5: Solve for x
    x = 225,772,821,323.52/403,467.20
  6. Step 6: Final answer
    x = 559,581.60

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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.