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Finding the Fourth Proportional to 528,138.50, 792,365.63 and 374,560.37

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Solution

The fourth proportional to 528,138.50, 792,365.63 and 374,560.37 is: 561,952.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,138.50 : 792,365.63 = 374,560.37 : x
  2. Step 2: Convert to fraction form
    528,138.50/792,365.63 = 374,560.37/x
  3. Step 3: Cross multiply
    528,138.50x = 792,365.63 × 374,560.37
  4. Step 4: Simplify right side
    528,138.50x = 296,788,760,522.66
  5. Step 5: Solve for x
    x = 296,788,760,522.66/528,138.50
  6. Step 6: Final answer
    x = 561,952.52

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1.5x scale

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.