Home / 1,235,936.40-1,852,867.80-644,960.40

Finding the Fourth Proportional to 1,235,936.40, 1,852,867.80 and 644,960.40

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Solution

The fourth proportional to 1,235,936.40, 1,852,867.80 and 644,960.40 is: 966,899.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,235,936.40 : 1,852,867.80 = 644,960.40 : x
  2. Step 2: Convert to fraction form
    1,235,936.40/1,852,867.80 = 644,960.40/x
  3. Step 3: Cross multiply
    1,235,936.40x = 1,852,867.80 × 644,960.40
  4. Step 4: Simplify right side
    1,235,936.40x = 1,195,026,357,435.12
  5. Step 5: Solve for x
    x = 1,195,026,357,435.12/1,235,936.40
  6. Step 6: Final answer
    x = 966,899.56

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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.