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Finding the Fourth Proportional to 403,315.47, 604,872.77 and 122,828.67

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Solution

The fourth proportional to 403,315.47, 604,872.77 and 122,828.67 is: 184,212.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,315.47 : 604,872.77 = 122,828.67 : x
  2. Step 2: Convert to fraction form
    403,315.47/604,872.77 = 122,828.67/x
  3. Step 3: Cross multiply
    403,315.47x = 604,872.77 × 122,828.67
  4. Step 4: Simplify right side
    403,315.47x = 74,295,717,244.17
  5. Step 5: Solve for x
    x = 74,295,717,244.17/403,315.47
  6. Step 6: Final answer
    x = 184,212.42

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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.