Home / 905,425.85-1,249,414.54-523,477.25

Finding the Fourth Proportional to 905,425.85, 1,249,414.54 and 523,477.25

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Solution

The fourth proportional to 905,425.85, 1,249,414.54 and 523,477.25 is: 722,356.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,425.85 : 1,249,414.54 = 523,477.25 : x
  2. Step 2: Convert to fraction form
    905,425.85/1,249,414.54 = 523,477.25/x
  3. Step 3: Cross multiply
    905,425.85x = 1,249,414.54 × 523,477.25
  4. Step 4: Simplify right side
    905,425.85x = 654,040,084,891.83
  5. Step 5: Solve for x
    x = 654,040,084,891.83/905,425.85
  6. Step 6: Final answer
    x = 722,356.32

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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.