Home / 288,525.16-398,314.02-198,945.64

Finding the Fourth Proportional to 288,525.16, 398,314.02 and 198,945.64

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Solution

The fourth proportional to 288,525.16, 398,314.02 and 198,945.64 is: 274,647.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,525.16 : 398,314.02 = 198,945.64 : x
  2. Step 2: Convert to fraction form
    288,525.16/398,314.02 = 198,945.64/x
  3. Step 3: Cross multiply
    288,525.16x = 398,314.02 × 198,945.64
  4. Step 4: Simplify right side
    288,525.16x = 79,242,837,629.87
  5. Step 5: Solve for x
    x = 79,242,837,629.87/288,525.16
  6. Step 6: Final answer
    x = 274,647.93

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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.