Home / 1,191,420.77-1,644,177.32-647,556.39

Finding the Fourth Proportional to 1,191,420.77, 1,644,177.32 and 647,556.39

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Solution

The fourth proportional to 1,191,420.77, 1,644,177.32 and 647,556.39 is: 893,636.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,191,420.77 : 1,644,177.32 = 647,556.39 : x
  2. Step 2: Convert to fraction form
    1,191,420.77/1,644,177.32 = 647,556.39/x
  3. Step 3: Cross multiply
    1,191,420.77x = 1,644,177.32 × 647,556.39
  4. Step 4: Simplify right side
    1,191,420.77x = 1,064,697,531,477.97
  5. Step 5: Solve for x
    x = 1,064,697,531,477.97/1,191,420.77
  6. Step 6: Final answer
    x = 893,636.88

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Double scale
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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.