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Finding the Fourth Proportional to 374,439.40, 561,659.10 and 248,468.20

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Solution

The fourth proportional to 374,439.40, 561,659.10 and 248,468.20 is: 372,702.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,439.40 : 561,659.10 = 248,468.20 : x
  2. Step 2: Convert to fraction form
    374,439.40/561,659.10 = 248,468.20/x
  3. Step 3: Cross multiply
    374,439.40x = 561,659.10 × 248,468.20
  4. Step 4: Simplify right side
    374,439.40x = 139,554,425,590.62
  5. Step 5: Solve for x
    x = 139,554,425,590.62/374,439.40
  6. Step 6: Final answer
    x = 372,702.30

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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.