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Finding the Fourth Proportional to 528,418.56, 792,461.34 and 173,349.84

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Solution

The fourth proportional to 528,418.56, 792,461.34 and 173,349.84 is: 259,970.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,418.56 : 792,461.34 = 173,349.84 : x
  2. Step 2: Convert to fraction form
    528,418.56/792,461.34 = 173,349.84/x
  3. Step 3: Cross multiply
    528,418.56x = 792,461.34 × 173,349.84
  4. Step 4: Simplify right side
    528,418.56x = 137,373,046,495.19
  5. Step 5: Solve for x
    x = 137,373,046,495.19/528,418.56
  6. Step 6: Final answer
    x = 259,970.14

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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.