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Finding the Fourth Proportional to 374,482.40, 561,723.60 and 248,511.20

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Solution

The fourth proportional to 374,482.40, 561,723.60 and 248,511.20 is: 372,766.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,482.40 : 561,723.60 = 248,511.20 : x
  2. Step 2: Convert to fraction form
    374,482.40/561,723.60 = 248,511.20/x
  3. Step 3: Cross multiply
    374,482.40x = 561,723.60 × 248,511.20
  4. Step 4: Simplify right side
    374,482.40x = 139,594,605,904.32
  5. Step 5: Solve for x
    x = 139,594,605,904.32/374,482.40
  6. Step 6: Final answer
    x = 372,766.80

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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.