Home / 1,210,799.62-1,670,915.01-666,937.81

Finding the Fourth Proportional to 1,210,799.62, 1,670,915.01 and 666,937.81

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Solution

The fourth proportional to 1,210,799.62, 1,670,915.01 and 666,937.81 is: 920,380.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,210,799.62 : 1,670,915.01 = 666,937.81 : x
  2. Step 2: Convert to fraction form
    1,210,799.62/1,670,915.01 = 666,937.81/x
  3. Step 3: Cross multiply
    1,210,799.62x = 1,670,915.01 × 666,937.81
  4. Step 4: Simplify right side
    1,210,799.62x = 1,114,396,397,465.53
  5. Step 5: Solve for x
    x = 1,114,396,397,465.53/1,210,799.62
  6. Step 6: Final answer
    x = 920,380.53

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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.