Home / 863,690.40-1,191,888.81-476,495.28

Finding the Fourth Proportional to 863,690.40, 1,191,888.81 and 476,495.28

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Solution

The fourth proportional to 863,690.40, 1,191,888.81 and 476,495.28 is: 657,561.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    863,690.40 : 1,191,888.81 = 476,495.28 : x
  2. Step 2: Convert to fraction form
    863,690.40/1,191,888.81 = 476,495.28/x
  3. Step 3: Cross multiply
    863,690.40x = 1,191,888.81 × 476,495.28
  4. Step 4: Simplify right side
    863,690.40x = 567,929,392,249.82
  5. Step 5: Solve for x
    x = 567,929,392,249.82/863,690.40
  6. Step 6: Final answer
    x = 657,561.31

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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.