Home / 693,979.60-1,040,969.40-414,043.60

Finding the Fourth Proportional to 693,979.60, 1,040,969.40 and 414,043.60

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Solution

The fourth proportional to 693,979.60, 1,040,969.40 and 414,043.60 is: 621,065.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,979.60 : 1,040,969.40 = 414,043.60 : x
  2. Step 2: Convert to fraction form
    693,979.60/1,040,969.40 = 414,043.60/x
  3. Step 3: Cross multiply
    693,979.60x = 1,040,969.40 × 414,043.60
  4. Step 4: Simplify right side
    693,979.60x = 431,006,717,865.84
  5. Step 5: Solve for x
    x = 431,006,717,865.84/693,979.60
  6. Step 6: Final answer
    x = 621,065.40

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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.