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Finding the Fourth Proportional to 528,608.10, 792,912.15 and 519,860.10

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Solution

The fourth proportional to 528,608.10, 792,912.15 and 519,860.10 is: 779,790.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,608.10 : 792,912.15 = 519,860.10 : x
  2. Step 2: Convert to fraction form
    528,608.10/792,912.15 = 519,860.10/x
  3. Step 3: Cross multiply
    528,608.10x = 792,912.15 × 519,860.10
  4. Step 4: Simplify right side
    528,608.10x = 412,203,389,590.22
  5. Step 5: Solve for x
    x = 412,203,389,590.22/528,608.10
  6. Step 6: Final answer
    x = 779,790.15

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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.