Home / 1,191,643.12-1,644,455.81-647,746.55

Finding the Fourth Proportional to 1,191,643.12, 1,644,455.81 and 647,746.55

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Solution

The fourth proportional to 1,191,643.12, 1,644,455.81 and 647,746.55 is: 893,883.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,191,643.12 : 1,644,455.81 = 647,746.55 : x
  2. Step 2: Convert to fraction form
    1,191,643.12/1,644,455.81 = 647,746.55/x
  3. Step 3: Cross multiply
    1,191,643.12x = 1,644,455.81 × 647,746.55
  4. Step 4: Simplify right side
    1,191,643.12x = 1,065,190,577,554.96
  5. Step 5: Solve for x
    x = 1,065,190,577,554.96/1,191,643.12
  6. Step 6: Final answer
    x = 893,883.88

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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.