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Finding the Fourth Proportional to 519,329.89, 716,673.32 and 289,885.17

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Solution

The fourth proportional to 519,329.89, 716,673.32 and 289,885.17 is: 400,040.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,329.89 : 716,673.32 = 289,885.17 : x
  2. Step 2: Convert to fraction form
    519,329.89/716,673.32 = 289,885.17/x
  3. Step 3: Cross multiply
    519,329.89x = 716,673.32 × 289,885.17
  4. Step 4: Simplify right side
    519,329.89x = 207,752,967,544.92
  5. Step 5: Solve for x
    x = 207,752,967,544.92/519,329.89
  6. Step 6: Final answer
    x = 400,040.46

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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.