Home / 646,161.77-891,688.46-404,577.54

Finding the Fourth Proportional to 646,161.77, 891,688.46 and 404,577.54

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Solution

The fourth proportional to 646,161.77, 891,688.46 and 404,577.54 is: 558,307.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,161.77 : 891,688.46 = 404,577.54 : x
  2. Step 2: Convert to fraction form
    646,161.77/891,688.46 = 404,577.54/x
  3. Step 3: Cross multiply
    646,161.77x = 891,688.46 × 404,577.54
  4. Step 4: Simplify right side
    646,161.77x = 360,757,121,570.30
  5. Step 5: Solve for x
    x = 360,757,121,570.30/646,161.77
  6. Step 6: Final answer
    x = 558,307.75

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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.