Home / 426,981.78-589,211.01-235,982.43

Finding the Fourth Proportional to 426,981.78, 589,211.01 and 235,982.43

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Solution

The fourth proportional to 426,981.78, 589,211.01 and 235,982.43 is: 325,642.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,981.78 : 589,211.01 = 235,982.43 : x
  2. Step 2: Convert to fraction form
    426,981.78/589,211.01 = 235,982.43/x
  3. Step 3: Cross multiply
    426,981.78x = 589,211.01 × 235,982.43
  4. Step 4: Simplify right side
    426,981.78x = 139,043,445,922.55
  5. Step 5: Solve for x
    x = 139,043,445,922.55/426,981.78
  6. Step 6: Final answer
    x = 325,642.57

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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.