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Finding the Fourth Proportional to 400,848.60, 601,272.90 and 248,633.40

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Solution

The fourth proportional to 400,848.60, 601,272.90 and 248,633.40 is: 372,950.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,848.60 : 601,272.90 = 248,633.40 : x
  2. Step 2: Convert to fraction form
    400,848.60/601,272.90 = 248,633.40/x
  3. Step 3: Cross multiply
    400,848.60x = 601,272.90 × 248,633.40
  4. Step 4: Simplify right side
    400,848.60x = 149,496,525,454.86
  5. Step 5: Solve for x
    x = 149,496,525,454.86/400,848.60
  6. Step 6: Final answer
    x = 372,950.10

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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.