Home / 317,839.83-438,435.58-190,441.60

Finding the Fourth Proportional to 317,839.83, 438,435.58 and 190,441.60

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Solution

The fourth proportional to 317,839.83, 438,435.58 and 190,441.60 is: 262,699.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,839.83 : 438,435.58 = 190,441.60 : x
  2. Step 2: Convert to fraction form
    317,839.83/438,435.58 = 190,441.60/x
  3. Step 3: Cross multiply
    317,839.83x = 438,435.58 × 190,441.60
  4. Step 4: Simplify right side
    317,839.83x = 83,496,373,352.13
  5. Step 5: Solve for x
    x = 83,496,373,352.13/317,839.83
  6. Step 6: Final answer
    x = 262,699.53

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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.