Home / 776,109.84-1,070,115.30-531,212.58

Finding the Fourth Proportional to 776,109.84, 1,070,115.30 and 531,212.58

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Solution

The fourth proportional to 776,109.84, 1,070,115.30 and 531,212.58 is: 732,446.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    776,109.84 : 1,070,115.30 = 531,212.58 : x
  2. Step 2: Convert to fraction form
    776,109.84/1,070,115.30 = 531,212.58/x
  3. Step 3: Cross multiply
    776,109.84x = 1,070,115.30 × 531,212.58
  4. Step 4: Simplify right side
    776,109.84x = 568,458,709,410.47
  5. Step 5: Solve for x
    x = 568,458,709,410.47/776,109.84
  6. Step 6: Final answer
    x = 732,446.21

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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.