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Finding the Fourth Proportional to 543,999.63, 750,406.59 and 339,695.85

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Solution

The fourth proportional to 543,999.63, 750,406.59 and 339,695.85 is: 468,584.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,999.63 : 750,406.59 = 339,695.85 : x
  2. Step 2: Convert to fraction form
    543,999.63/750,406.59 = 339,695.85/x
  3. Step 3: Cross multiply
    543,999.63x = 750,406.59 × 339,695.85
  4. Step 4: Simplify right side
    543,999.63x = 254,910,004,435.65
  5. Step 5: Solve for x
    x = 254,910,004,435.65/543,999.63
  6. Step 6: Final answer
    x = 468,584.89

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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.