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Finding the Fourth Proportional to 622,708.74, 934,064.03 and 173,430.90

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Solution

The fourth proportional to 622,708.74, 934,064.03 and 173,430.90 is: 260,146.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,708.74 : 934,064.03 = 173,430.90 : x
  2. Step 2: Convert to fraction form
    622,708.74/934,064.03 = 173,430.90/x
  3. Step 3: Cross multiply
    622,708.74x = 934,064.03 × 173,430.90
  4. Step 4: Simplify right side
    622,708.74x = 161,995,566,848.53
  5. Step 5: Solve for x
    x = 161,995,566,848.53/622,708.74
  6. Step 6: Final answer
    x = 260,146.61

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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.