Home / 866,940.88-1,196,477.64-485,064.40

Finding the Fourth Proportional to 866,940.88, 1,196,477.64 and 485,064.40

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Solution

The fourth proportional to 866,940.88, 1,196,477.64 and 485,064.40 is: 669,444.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    866,940.88 : 1,196,477.64 = 485,064.40 : x
  2. Step 2: Convert to fraction form
    866,940.88/1,196,477.64 = 485,064.40/x
  3. Step 3: Cross multiply
    866,940.88x = 1,196,477.64 × 485,064.40
  4. Step 4: Simplify right side
    866,940.88x = 580,368,708,560.02
  5. Step 5: Solve for x
    x = 580,368,708,560.02/866,940.88
  6. Step 6: Final answer
    x = 669,444.39

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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.