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Finding the Fourth Proportional to 336,586.60, 504,005.10 and 266,019.40

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Solution

The fourth proportional to 336,586.60, 504,005.10 and 266,019.40 is: 398,337.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,586.60 : 504,005.10 = 266,019.40 : x
  2. Step 2: Convert to fraction form
    336,586.60/504,005.10 = 266,019.40/x
  3. Step 3: Cross multiply
    336,586.60x = 504,005.10 × 266,019.40
  4. Step 4: Simplify right side
    336,586.60x = 134,075,134,298.94
  5. Step 5: Solve for x
    x = 134,075,134,298.94/336,586.60
  6. Step 6: Final answer
    x = 398,337.71

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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.