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Finding the Fourth Proportional to 385,661.61, 577,324.89 and 350,122.86

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Solution

The fourth proportional to 385,661.61, 577,324.89 and 350,122.86 is: 524,124.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,661.61 : 577,324.89 = 350,122.86 : x
  2. Step 2: Convert to fraction form
    385,661.61/577,324.89 = 350,122.86/x
  3. Step 3: Cross multiply
    385,661.61x = 577,324.89 × 350,122.86
  4. Step 4: Simplify right side
    385,661.61x = 202,134,641,635.99
  5. Step 5: Solve for x
    x = 202,134,641,635.99/385,661.61
  6. Step 6: Final answer
    x = 524,124.35

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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.