Home / 1,085,651.90-1,628,491.70-286,926.54

Finding the Fourth Proportional to 1,085,651.90, 1,628,491.70 and 286,926.54

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Solution

The fourth proportional to 1,085,651.90, 1,628,491.70 and 286,926.54 is: 430,393.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,085,651.90 : 1,628,491.70 = 286,926.54 : x
  2. Step 2: Convert to fraction form
    1,085,651.90/1,628,491.70 = 286,926.54/x
  3. Step 3: Cross multiply
    1,085,651.90x = 1,628,491.70 × 286,926.54
  4. Step 4: Simplify right side
    1,085,651.90x = 467,257,488,899.72
  5. Step 5: Solve for x
    x = 467,257,488,899.72/1,085,651.90
  6. Step 6: Final answer
    x = 430,393.47

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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.