Home / 1,235,940.40-1,852,873.80-644,964.40

Finding the Fourth Proportional to 1,235,940.40, 1,852,873.80 and 644,964.40

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Solution

The fourth proportional to 1,235,940.40, 1,852,873.80 and 644,964.40 is: 966,905.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,235,940.40 : 1,852,873.80 = 644,964.40 : x
  2. Step 2: Convert to fraction form
    1,235,940.40/1,852,873.80 = 644,964.40/x
  3. Step 3: Cross multiply
    1,235,940.40x = 1,852,873.80 × 644,964.40
  4. Step 4: Simplify right side
    1,235,940.40x = 1,195,037,638,692.72
  5. Step 5: Solve for x
    x = 1,195,037,638,692.72/1,235,940.40
  6. Step 6: Final answer
    x = 966,905.56

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.