Home / 898,654.85-1,238,667.21-637,099.37

Finding the Fourth Proportional to 898,654.85, 1,238,667.21 and 637,099.37

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Solution

The fourth proportional to 898,654.85, 1,238,667.21 and 637,099.37 is: 878,150.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    898,654.85 : 1,238,667.21 = 637,099.37 : x
  2. Step 2: Convert to fraction form
    898,654.85/1,238,667.21 = 637,099.37/x
  3. Step 3: Cross multiply
    898,654.85x = 1,238,667.21 × 637,099.37
  4. Step 4: Simplify right side
    898,654.85x = 789,154,099,130.66
  5. Step 5: Solve for x
    x = 789,154,099,130.66/898,654.85
  6. Step 6: Final answer
    x = 878,150.38

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1.5x scale

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.