Home / 810,908.30-1,118,967.72-448,273.70

Finding the Fourth Proportional to 810,908.30, 1,118,967.72 and 448,273.70

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Solution

The fourth proportional to 810,908.30, 1,118,967.72 and 448,273.70 is: 618,570.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,908.30 : 1,118,967.72 = 448,273.70 : x
  2. Step 2: Convert to fraction form
    810,908.30/1,118,967.72 = 448,273.70/x
  3. Step 3: Cross multiply
    810,908.30x = 1,118,967.72 × 448,273.70
  4. Step 4: Simplify right side
    810,908.30x = 501,603,800,024.96
  5. Step 5: Solve for x
    x = 501,603,800,024.96/810,908.30
  6. Step 6: Final answer
    x = 618,570.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.