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Finding the Fourth Proportional to 489,095.55, 674,958.77 and 295,476.35

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Solution

The fourth proportional to 489,095.55, 674,958.77 and 295,476.35 is: 407,761.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,095.55 : 674,958.77 = 295,476.35 : x
  2. Step 2: Convert to fraction form
    489,095.55/674,958.77 = 295,476.35/x
  3. Step 3: Cross multiply
    489,095.55x = 674,958.77 × 295,476.35
  4. Step 4: Simplify right side
    489,095.55x = 199,434,348,907.91
  5. Step 5: Solve for x
    x = 199,434,348,907.91/489,095.55
  6. Step 6: Final answer
    x = 407,761.53

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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.