Home / 851,105.10-1,276,949.28-290,533.26

Finding the Fourth Proportional to 851,105.10, 1,276,949.28 and 290,533.26

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Solution

The fourth proportional to 851,105.10, 1,276,949.28 and 290,533.26 is: 435,899.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,105.10 : 1,276,949.28 = 290,533.26 : x
  2. Step 2: Convert to fraction form
    851,105.10/1,276,949.28 = 290,533.26/x
  3. Step 3: Cross multiply
    851,105.10x = 1,276,949.28 × 290,533.26
  4. Step 4: Simplify right side
    851,105.10x = 370,996,237,173.05
  5. Step 5: Solve for x
    x = 370,996,237,173.05/851,105.10
  6. Step 6: Final answer
    x = 435,899.44

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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.