Home / 1,210,205.16-1,670,069.34-666,329.58

Finding the Fourth Proportional to 1,210,205.16, 1,670,069.34 and 666,329.58

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Solution

The fourth proportional to 1,210,205.16, 1,670,069.34 and 666,329.58 is: 919,527.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,210,205.16 : 1,670,069.34 = 666,329.58 : x
  2. Step 2: Convert to fraction form
    1,210,205.16/1,670,069.34 = 666,329.58/x
  3. Step 3: Cross multiply
    1,210,205.16x = 1,670,069.34 × 666,329.58
  4. Step 4: Simplify right side
    1,210,205.16x = 1,112,816,601,893.08
  5. Step 5: Solve for x
    x = 1,112,816,601,893.08/1,210,205.16
  6. Step 6: Final answer
    x = 919,527.23

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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.