Home / 1,285,171.40-1,927,757.10-655,315.40

Finding the Fourth Proportional to 1,285,171.40, 1,927,757.10 and 655,315.40

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Solution

The fourth proportional to 1,285,171.40, 1,927,757.10 and 655,315.40 is: 982,973.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,285,171.40 : 1,927,757.10 = 655,315.40 : x
  2. Step 2: Convert to fraction form
    1,285,171.40/1,927,757.10 = 655,315.40/x
  3. Step 3: Cross multiply
    1,285,171.40x = 1,927,757.10 × 655,315.40
  4. Step 4: Simplify right side
    1,285,171.40x = 1,263,288,915,089.34
  5. Step 5: Solve for x
    x = 1,263,288,915,089.34/1,285,171.40
  6. Step 6: Final answer
    x = 982,973.10

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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.