Home / 776,072.62-1,070,965.83-431,905.51

Finding the Fourth Proportional to 776,072.62, 1,070,965.83 and 431,905.51

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Solution

The fourth proportional to 776,072.62, 1,070,965.83 and 431,905.51 is: 596,021.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    776,072.62 : 1,070,965.83 = 431,905.51 : x
  2. Step 2: Convert to fraction form
    776,072.62/1,070,965.83 = 431,905.51/x
  3. Step 3: Cross multiply
    776,072.62x = 1,070,965.83 × 431,905.51
  4. Step 4: Simplify right side
    776,072.62x = 462,556,037,643.89
  5. Step 5: Solve for x
    x = 462,556,037,643.89/776,072.62
  6. Step 6: Final answer
    x = 596,021.59

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Double scale
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1.5x scale

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.