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Finding the Fourth Proportional to 528,092.65, 792,138.98 and 403,676.65

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Solution

The fourth proportional to 528,092.65, 792,138.98 and 403,676.65 is: 605,514.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,092.65 : 792,138.98 = 403,676.65 : x
  2. Step 2: Convert to fraction form
    528,092.65/792,138.98 = 403,676.65/x
  3. Step 3: Cross multiply
    528,092.65x = 792,138.98 × 403,676.65
  4. Step 4: Simplify right side
    528,092.65x = 319,768,009,780.82
  5. Step 5: Solve for x
    x = 319,768,009,780.82/528,092.65
  6. Step 6: Final answer
    x = 605,514.98

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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.