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Finding the Fourth Proportional to 519,032.93, 716,264.45 and 289,576.56

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Solution

The fourth proportional to 519,032.93, 716,264.45 and 289,576.56 is: 399,615.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,032.93 : 716,264.45 = 289,576.56 : x
  2. Step 2: Convert to fraction form
    519,032.93/716,264.45 = 289,576.56/x
  3. Step 3: Cross multiply
    519,032.93x = 716,264.45 × 289,576.56
  4. Step 4: Simplify right side
    519,032.93x = 207,413,394,033.41
  5. Step 5: Solve for x
    x = 207,413,394,033.41/519,032.93
  6. Step 6: Final answer
    x = 399,615.10

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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.