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Finding the Fourth Proportional to 464,842.54, 641,455.74 and 260,874.40

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Solution

The fourth proportional to 464,842.54, 641,455.74 and 260,874.40 is: 359,991.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    464,842.54 : 641,455.74 = 260,874.40 : x
  2. Step 2: Convert to fraction form
    464,842.54/641,455.74 = 260,874.40/x
  3. Step 3: Cross multiply
    464,842.54x = 641,455.74 × 260,874.40
  4. Step 4: Simplify right side
    464,842.54x = 167,339,381,299.06
  5. Step 5: Solve for x
    x = 167,339,381,299.06/464,842.54
  6. Step 6: Final answer
    x = 359,991.54

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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.