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Finding the Fourth Proportional to 623,156.72, 859,956.71 and 336,676.73

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Solution

The fourth proportional to 623,156.72, 859,956.71 and 336,676.73 is: 464,614.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,156.72 : 859,956.71 = 336,676.73 : x
  2. Step 2: Convert to fraction form
    623,156.72/859,956.71 = 336,676.73/x
  3. Step 3: Cross multiply
    623,156.72x = 859,956.71 × 336,676.73
  4. Step 4: Simplify right side
    623,156.72x = 289,527,407,081.19
  5. Step 5: Solve for x
    x = 289,527,407,081.19/623,156.72
  6. Step 6: Final answer
    x = 464,614.12

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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.