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Finding the Fourth Proportional to 539,079.01, 744,168.15 and 348,185.50

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Solution

The fourth proportional to 539,079.01, 744,168.15 and 348,185.50 is: 480,650.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,079.01 : 744,168.15 = 348,185.50 : x
  2. Step 2: Convert to fraction form
    539,079.01/744,168.15 = 348,185.50/x
  3. Step 3: Cross multiply
    539,079.01x = 744,168.15 × 348,185.50
  4. Step 4: Simplify right side
    539,079.01x = 259,108,559,391.83
  5. Step 5: Solve for x
    x = 259,108,559,391.83/539,079.01
  6. Step 6: Final answer
    x = 480,650.43

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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.