Home / 297,117.26-445,811.96-128,689.10

Finding the Fourth Proportional to 297,117.26, 445,811.96 and 128,689.10

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Solution

The fourth proportional to 297,117.26, 445,811.96 and 128,689.10 is: 193,092.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,117.26 : 445,811.96 = 128,689.10 : x
  2. Step 2: Convert to fraction form
    297,117.26/445,811.96 = 128,689.10/x
  3. Step 3: Cross multiply
    297,117.26x = 445,811.96 × 128,689.10
  4. Step 4: Simplify right side
    297,117.26x = 57,371,137,994.30
  5. Step 5: Solve for x
    x = 57,371,137,994.30/297,117.26
  6. Step 6: Final answer
    x = 193,092.58

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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.