Home / 969,850.68-1,338,435.47-540,130.83

Finding the Fourth Proportional to 969,850.68, 1,338,435.47 and 540,130.83

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Solution

The fourth proportional to 969,850.68, 1,338,435.47 and 540,130.83 is: 745,403.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    969,850.68 : 1,338,435.47 = 540,130.83 : x
  2. Step 2: Convert to fraction form
    969,850.68/1,338,435.47 = 540,130.83/x
  3. Step 3: Cross multiply
    969,850.68x = 1,338,435.47 × 540,130.83
  4. Step 4: Simplify right side
    969,850.68x = 722,930,261,312.54
  5. Step 5: Solve for x
    x = 722,930,261,312.54/969,850.68
  6. Step 6: Final answer
    x = 745,403.68

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Double scale
Find fourth proportional to 969,851.68, 1,338,436.85 and 540,131.83
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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.