Home / 808,541.80-1,213,811.10-509,021.80

Finding the Fourth Proportional to 808,541.80, 1,213,811.10 and 509,021.80

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Solution

The fourth proportional to 808,541.80, 1,213,811.10 and 509,021.80 is: 764,161.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,541.80 : 1,213,811.10 = 509,021.80 : x
  2. Step 2: Convert to fraction form
    808,541.80/1,213,811.10 = 509,021.80/x
  3. Step 3: Cross multiply
    808,541.80x = 1,213,811.10 × 509,021.80
  4. Step 4: Simplify right side
    808,541.80x = 617,856,310,981.98
  5. Step 5: Solve for x
    x = 617,856,310,981.98/808,541.80
  6. Step 6: Final answer
    x = 764,161.25

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Double scale
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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.