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Finding the Fourth Proportional to 565,487.20, 848,230.80 and 512,999.20

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Solution

The fourth proportional to 565,487.20, 848,230.80 and 512,999.20 is: 769,498.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    565,487.20 : 848,230.80 = 512,999.20 : x
  2. Step 2: Convert to fraction form
    565,487.20/848,230.80 = 512,999.20/x
  3. Step 3: Cross multiply
    565,487.20x = 848,230.80 × 512,999.20
  4. Step 4: Simplify right side
    565,487.20x = 435,141,721,815.36
  5. Step 5: Solve for x
    x = 435,141,721,815.36/565,487.20
  6. Step 6: Final answer
    x = 769,498.80

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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.