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Finding the Fourth Proportional to 622,678.61, 934,042.52 and 173,438.74

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Solution

The fourth proportional to 622,678.61, 934,042.52 and 173,438.74 is: 260,164.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,678.61 : 934,042.52 = 173,438.74 : x
  2. Step 2: Convert to fraction form
    622,678.61/934,042.52 = 173,438.74/x
  3. Step 3: Cross multiply
    622,678.61x = 934,042.52 × 173,438.74
  4. Step 4: Simplify right side
    622,678.61x = 161,999,154,572.93
  5. Step 5: Solve for x
    x = 161,999,154,572.93/622,678.61
  6. Step 6: Final answer
    x = 260,164.96

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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.