Home / 638,986.04-958,314.90-189,600.60

Finding the Fourth Proportional to 638,986.04, 958,314.90 and 189,600.60

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Solution

The fourth proportional to 638,986.04, 958,314.90 and 189,600.60 is: 284,352.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,986.04 : 958,314.90 = 189,600.60 : x
  2. Step 2: Convert to fraction form
    638,986.04/958,314.90 = 189,600.60/x
  3. Step 3: Cross multiply
    638,986.04x = 958,314.90 × 189,600.60
  4. Step 4: Simplify right side
    638,986.04x = 181,697,080,028.94
  5. Step 5: Solve for x
    x = 181,697,080,028.94/638,986.04
  6. Step 6: Final answer
    x = 284,352.19

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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.