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Finding the Fourth Proportional to 336,123.20, 503,990.40 and 125,782.40

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Solution

The fourth proportional to 336,123.20, 503,990.40 and 125,782.40 is: 188,600.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,123.20 : 503,990.40 = 125,782.40 : x
  2. Step 2: Convert to fraction form
    336,123.20/503,990.40 = 125,782.40/x
  3. Step 3: Cross multiply
    336,123.20x = 503,990.40 × 125,782.40
  4. Step 4: Simplify right side
    336,123.20x = 63,393,122,088.96
  5. Step 5: Solve for x
    x = 63,393,122,088.96/336,123.20
  6. Step 6: Final answer
    x = 188,600.85

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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.