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Finding the Fourth Proportional to 565,423.20, 848,134.80 and 488,440.80

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Solution

The fourth proportional to 565,423.20, 848,134.80 and 488,440.80 is: 732,661.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    565,423.20 : 848,134.80 = 488,440.80 : x
  2. Step 2: Convert to fraction form
    565,423.20/848,134.80 = 488,440.80/x
  3. Step 3: Cross multiply
    565,423.20x = 848,134.80 × 488,440.80
  4. Step 4: Simplify right side
    565,423.20x = 414,263,640,219.84
  5. Step 5: Solve for x
    x = 414,263,640,219.84/565,423.20
  6. Step 6: Final answer
    x = 732,661.20

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Similar ratio
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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.