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Finding the Fourth Proportional to 794,812.80, 1,189,108.80 and 514,876.80

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Solution

The fourth proportional to 794,812.80, 1,189,108.80 and 514,876.80 is: 770,300.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    794,812.80 : 1,189,108.80 = 514,876.80 : x
  2. Step 2: Convert to fraction form
    794,812.80/1,189,108.80 = 514,876.80/x
  3. Step 3: Cross multiply
    794,812.80x = 1,189,108.80 × 514,876.80
  4. Step 4: Simplify right side
    794,812.80x = 612,244,533,795.84
  5. Step 5: Solve for x
    x = 612,244,533,795.84/794,812.80
  6. Step 6: Final answer
    x = 770,300.29

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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.