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Finding the Fourth Proportional to 528,768.10, 793,670.55 and 262,828.90

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Solution

The fourth proportional to 528,768.10, 793,670.55 and 262,828.90 is: 394,501.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,768.10 : 793,670.55 = 262,828.90 : x
  2. Step 2: Convert to fraction form
    528,768.10/793,670.55 = 262,828.90/x
  3. Step 3: Cross multiply
    528,768.10x = 793,670.55 × 262,828.90
  4. Step 4: Simplify right side
    528,768.10x = 208,599,557,618.90
  5. Step 5: Solve for x
    x = 208,599,557,618.90/528,768.10
  6. Step 6: Final answer
    x = 394,501.03

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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.