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Finding the Fourth Proportional to 539,937.14, 810,738.06 and 456,789.86

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Solution

The fourth proportional to 539,937.14, 810,738.06 and 456,789.86 is: 685,888.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,937.14 : 810,738.06 = 456,789.86 : x
  2. Step 2: Convert to fraction form
    539,937.14/810,738.06 = 456,789.86/x
  3. Step 3: Cross multiply
    539,937.14x = 810,738.06 × 456,789.86
  4. Step 4: Simplify right side
    539,937.14x = 370,336,924,924.07
  5. Step 5: Solve for x
    x = 370,336,924,924.07/539,937.14
  6. Step 6: Final answer
    x = 685,888.96

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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.