Home / 1,211,199.81-1,815,085.89-671,693.39

Finding the Fourth Proportional to 1,211,199.81, 1,815,085.89 and 671,693.39

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Solution

The fourth proportional to 1,211,199.81, 1,815,085.89 and 671,693.39 is: 1,006,589.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,211,199.81 : 1,815,085.89 = 671,693.39 : x
  2. Step 2: Convert to fraction form
    1,211,199.81/1,815,085.89 = 671,693.39/x
  3. Step 3: Cross multiply
    1,211,199.81x = 1,815,085.89 × 671,693.39
  4. Step 4: Simplify right side
    1,211,199.81x = 1,219,181,194,595.27
  5. Step 5: Solve for x
    x = 1,219,181,194,595.27/1,211,199.81
  6. Step 6: Final answer
    x = 1,006,589.65

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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.