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Finding the Fourth Proportional to 546,720.61, 754,474.77 and 305,003.19

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Solution

The fourth proportional to 546,720.61, 754,474.77 and 305,003.19 is: 420,904.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    546,720.61 : 754,474.77 = 305,003.19 : x
  2. Step 2: Convert to fraction form
    546,720.61/754,474.77 = 305,003.19/x
  3. Step 3: Cross multiply
    546,720.61x = 754,474.77 × 305,003.19
  4. Step 4: Simplify right side
    546,720.61x = 230,117,210,209.88
  5. Step 5: Solve for x
    x = 230,117,210,209.88/546,720.61
  6. Step 6: Final answer
    x = 420,904.58

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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.