Home / 1,191,030.56-1,643,618.85-647,168.23

Finding the Fourth Proportional to 1,191,030.56, 1,643,618.85 and 647,168.23

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Solution

The fourth proportional to 1,191,030.56, 1,643,618.85 and 647,168.23 is: 893,090.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,191,030.56 : 1,643,618.85 = 647,168.23 : x
  2. Step 2: Convert to fraction form
    1,191,030.56/1,643,618.85 = 647,168.23/x
  3. Step 3: Cross multiply
    1,191,030.56x = 1,643,618.85 × 647,168.23
  4. Step 4: Simplify right side
    1,191,030.56x = 1,063,697,901,949.14
  5. Step 5: Solve for x
    x = 1,063,697,901,949.14/1,191,030.56
  6. Step 6: Final answer
    x = 893,090.35

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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.