Home / 312,627.15-431,447.04-190,167.30

Finding the Fourth Proportional to 312,627.15, 431,447.04 and 190,167.30

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Solution

The fourth proportional to 312,627.15, 431,447.04 and 190,167.30 is: 262,444.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,627.15 : 431,447.04 = 190,167.30 : x
  2. Step 2: Convert to fraction form
    312,627.15/431,447.04 = 190,167.30/x
  3. Step 3: Cross multiply
    312,627.15x = 431,447.04 × 190,167.30
  4. Step 4: Simplify right side
    312,627.15x = 82,047,118,689.79
  5. Step 5: Solve for x
    x = 82,047,118,689.79/312,627.15
  6. Step 6: Final answer
    x = 262,444.00

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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.