Home / 1,211,598.56-1,671,930.86-667,703.95

Finding the Fourth Proportional to 1,211,598.56, 1,671,930.86 and 667,703.95

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Solution

The fourth proportional to 1,211,598.56, 1,671,930.86 and 667,703.95 is: 921,390.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,211,598.56 : 1,671,930.86 = 667,703.95 : x
  2. Step 2: Convert to fraction form
    1,211,598.56/1,671,930.86 = 667,703.95/x
  3. Step 3: Cross multiply
    1,211,598.56x = 1,671,930.86 × 667,703.95
  4. Step 4: Simplify right side
    1,211,598.56x = 1,116,354,831,830.55
  5. Step 5: Solve for x
    x = 1,116,354,831,830.55/1,211,598.56
  6. Step 6: Final answer
    x = 921,390.03

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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.