Home / 1,078,045.80-1,618,235.10-605,653.80

Finding the Fourth Proportional to 1,078,045.80, 1,618,235.10 and 605,653.80

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Solution

The fourth proportional to 1,078,045.80, 1,618,235.10 and 605,653.80 is: 909,135.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,078,045.80 : 1,618,235.10 = 605,653.80 : x
  2. Step 2: Convert to fraction form
    1,078,045.80/1,618,235.10 = 605,653.80/x
  3. Step 3: Cross multiply
    1,078,045.80x = 1,618,235.10 × 605,653.80
  4. Step 4: Simplify right side
    1,078,045.80x = 980,090,237,608.38
  5. Step 5: Solve for x
    x = 980,090,237,608.38/1,078,045.80
  6. Step 6: Final answer
    x = 909,135.99

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.