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Finding the Fourth Proportional to 520,658.07, 781,004.28 and 179,098.07

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Solution

The fourth proportional to 520,658.07, 781,004.28 and 179,098.07 is: 268,653.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,658.07 : 781,004.28 = 179,098.07 : x
  2. Step 2: Convert to fraction form
    520,658.07/781,004.28 = 179,098.07/x
  3. Step 3: Cross multiply
    520,658.07x = 781,004.28 × 179,098.07
  4. Step 4: Simplify right side
    520,658.07x = 139,876,355,304.72
  5. Step 5: Solve for x
    x = 139,876,355,304.72/520,658.07
  6. Step 6: Final answer
    x = 268,653.01

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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.