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Finding the Fourth Proportional to 528,354, 792,647.64 and 195,930

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Solution

The fourth proportional to 528,354, 792,647.64 and 195,930 is: 293,938.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,354 : 792,647.64 = 195,930 : x
  2. Step 2: Convert to fraction form
    528,354/792,647.64 = 195,930/x
  3. Step 3: Cross multiply
    528,354x = 792,647.64 × 195,930
  4. Step 4: Simplify right side
    528,354x = 155,303,452,105.20
  5. Step 5: Solve for x
    x = 155,303,452,105.20/528,354
  6. Step 6: Final answer
    x = 293,938.25

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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.