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Finding the Fourth Proportional to 823,897.77, 1,235,850.77 and 291,419.29

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Solution

The fourth proportional to 823,897.77, 1,235,850.77 and 291,419.29 is: 437,130.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    823,897.77 : 1,235,850.77 = 291,419.29 : x
  2. Step 2: Convert to fraction form
    823,897.77/1,235,850.77 = 291,419.29/x
  3. Step 3: Cross multiply
    823,897.77x = 1,235,850.77 × 291,419.29
  4. Step 4: Simplify right side
    823,897.77x = 360,150,753,939.35
  5. Step 5: Solve for x
    x = 360,150,753,939.35/823,897.77
  6. Step 6: Final answer
    x = 437,130.39

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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.