Home / 872,899.44-1,309,349.87-417,383.49

Finding the Fourth Proportional to 872,899.44, 1,309,349.87 and 417,383.49

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Solution

The fourth proportional to 872,899.44, 1,309,349.87 and 417,383.49 is: 626,075.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    872,899.44 : 1,309,349.87 = 417,383.49 : x
  2. Step 2: Convert to fraction form
    872,899.44/1,309,349.87 = 417,383.49/x
  3. Step 3: Cross multiply
    872,899.44x = 1,309,349.87 × 417,383.49
  4. Step 4: Simplify right side
    872,899.44x = 546,501,018,371.65
  5. Step 5: Solve for x
    x = 546,501,018,371.65/872,899.44
  6. Step 6: Final answer
    x = 626,075.57

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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.