Home / 451,272.07-622,396.72-383,513.34

Finding the Fourth Proportional to 451,272.07, 622,396.72 and 383,513.34

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Solution

The fourth proportional to 451,272.07, 622,396.72 and 383,513.34 is: 528,943.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,272.07 : 622,396.72 = 383,513.34 : x
  2. Step 2: Convert to fraction form
    451,272.07/622,396.72 = 383,513.34/x
  3. Step 3: Cross multiply
    451,272.07x = 622,396.72 × 383,513.34
  4. Step 4: Simplify right side
    451,272.07x = 238,697,444,892.25
  5. Step 5: Solve for x
    x = 238,697,444,892.25/451,272.07
  6. Step 6: Final answer
    x = 528,943.54

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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.