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Finding the Fourth Proportional to 559,944.90, 772,710.84 and 305,295.48

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Solution

The fourth proportional to 559,944.90, 772,710.84 and 305,295.48 is: 421,300.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,944.90 : 772,710.84 = 305,295.48 : x
  2. Step 2: Convert to fraction form
    559,944.90/772,710.84 = 305,295.48/x
  3. Step 3: Cross multiply
    559,944.90x = 772,710.84 × 305,295.48
  4. Step 4: Simplify right side
    559,944.90x = 235,905,126,799.00
  5. Step 5: Solve for x
    x = 235,905,126,799.00/559,944.90
  6. Step 6: Final answer
    x = 421,300.61

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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.