Home / 939,851.67-1,407,881.39-433,709.54

Finding the Fourth Proportional to 939,851.67, 1,407,881.39 and 433,709.54

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Solution

The fourth proportional to 939,851.67, 1,407,881.39 and 433,709.54 is: 649,689.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,851.67 : 1,407,881.39 = 433,709.54 : x
  2. Step 2: Convert to fraction form
    939,851.67/1,407,881.39 = 433,709.54/x
  3. Step 3: Cross multiply
    939,851.67x = 1,407,881.39 × 433,709.54
  4. Step 4: Simplify right side
    939,851.67x = 610,611,582,992.05
  5. Step 5: Solve for x
    x = 610,611,582,992.05/939,851.67
  6. Step 6: Final answer
    x = 649,689.31

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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.