Home / 683,418.80-1,025,128.20-615,767.60

Finding the Fourth Proportional to 683,418.80, 1,025,128.20 and 615,767.60

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Solution

The fourth proportional to 683,418.80, 1,025,128.20 and 615,767.60 is: 923,651.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    683,418.80 : 1,025,128.20 = 615,767.60 : x
  2. Step 2: Convert to fraction form
    683,418.80/1,025,128.20 = 615,767.60/x
  3. Step 3: Cross multiply
    683,418.80x = 1,025,128.20 × 615,767.60
  4. Step 4: Simplify right side
    683,418.80x = 631,240,731,406.32
  5. Step 5: Solve for x
    x = 631,240,731,406.32/683,418.80
  6. Step 6: Final answer
    x = 923,651.40

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1.5x scale

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.