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Finding the Fourth Proportional to 364,423.70, 503,138.85 and 228,643.94

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Solution

The fourth proportional to 364,423.70, 503,138.85 and 228,643.94 is: 315,675.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    364,423.70 : 503,138.85 = 228,643.94 : x
  2. Step 2: Convert to fraction form
    364,423.70/503,138.85 = 228,643.94/x
  3. Step 3: Cross multiply
    364,423.70x = 503,138.85 × 228,643.94
  4. Step 4: Simplify right side
    364,423.70x = 115,039,649,031.07
  5. Step 5: Solve for x
    x = 115,039,649,031.07/364,423.70
  6. Step 6: Final answer
    x = 315,675.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.