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Finding the Fourth Proportional to 632,540.89, 872,916.27 and 346,065.76

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Solution

The fourth proportional to 632,540.89, 872,916.27 and 346,065.76 is: 477,576.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    632,540.89 : 872,916.27 = 346,065.76 : x
  2. Step 2: Convert to fraction form
    632,540.89/872,916.27 = 346,065.76/x
  3. Step 3: Cross multiply
    632,540.89x = 872,916.27 × 346,065.76
  4. Step 4: Simplify right side
    632,540.89x = 302,086,430,211.63
  5. Step 5: Solve for x
    x = 302,086,430,211.63/632,540.89
  6. Step 6: Final answer
    x = 477,576.13

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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.