Home / 638,525.02-881,318.07-383,827

Finding the Fourth Proportional to 638,525.02, 881,318.07 and 383,827

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Solution

The fourth proportional to 638,525.02, 881,318.07 and 383,827 is: 529,773.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,525.02 : 881,318.07 = 383,827 : x
  2. Step 2: Convert to fraction form
    638,525.02/881,318.07 = 383,827/x
  3. Step 3: Cross multiply
    638,525.02x = 881,318.07 × 383,827
  4. Step 4: Simplify right side
    638,525.02x = 338,273,670,853.89
  5. Step 5: Solve for x
    x = 338,273,670,853.89/638,525.02
  6. Step 6: Final answer
    x = 529,773.56

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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.