Home / 1,209,784.80-1,669,662-693,740.64

Finding the Fourth Proportional to 1,209,784.80, 1,669,662 and 693,740.64

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Solution

The fourth proportional to 1,209,784.80, 1,669,662 and 693,740.64 is: 957,453.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,209,784.80 : 1,669,662 = 693,740.64 : x
  2. Step 2: Convert to fraction form
    1,209,784.80/1,669,662 = 693,740.64/x
  3. Step 3: Cross multiply
    1,209,784.80x = 1,669,662 × 693,740.64
  4. Step 4: Simplify right side
    1,209,784.80x = 1,158,312,384,463.68
  5. Step 5: Solve for x
    x = 1,158,312,384,463.68/1,209,784.80
  6. Step 6: Final answer
    x = 957,453.25

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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.