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Finding the Fourth Proportional to 343,892.40, 515,838.60 and 224,320.20

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Solution

The fourth proportional to 343,892.40, 515,838.60 and 224,320.20 is: 336,480.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,892.40 : 515,838.60 = 224,320.20 : x
  2. Step 2: Convert to fraction form
    343,892.40/515,838.60 = 224,320.20/x
  3. Step 3: Cross multiply
    343,892.40x = 515,838.60 × 224,320.20
  4. Step 4: Simplify right side
    343,892.40x = 115,713,017,919.72
  5. Step 5: Solve for x
    x = 115,713,017,919.72/343,892.40
  6. Step 6: Final answer
    x = 336,480.30

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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.