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Finding the Fourth Proportional to 859,302, 1,185,705.06 and 496,655.96

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Solution

The fourth proportional to 859,302, 1,185,705.06 and 496,655.96 is: 685,309.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,302 : 1,185,705.06 = 496,655.96 : x
  2. Step 2: Convert to fraction form
    859,302/1,185,705.06 = 496,655.96/x
  3. Step 3: Cross multiply
    859,302x = 1,185,705.06 × 496,655.96
  4. Step 4: Simplify right side
    859,302x = 588,887,478,922.63
  5. Step 5: Solve for x
    x = 588,887,478,922.63/859,302
  6. Step 6: Final answer
    x = 685,309.10

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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.