Home / 1,211,991.48-1,672,547.85-668,136.54

Finding the Fourth Proportional to 1,211,991.48, 1,672,547.85 and 668,136.54

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Solution

The fourth proportional to 1,211,991.48, 1,672,547.85 and 668,136.54 is: 922,028.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,211,991.48 : 1,672,547.85 = 668,136.54 : x
  2. Step 2: Convert to fraction form
    1,211,991.48/1,672,547.85 = 668,136.54/x
  3. Step 3: Cross multiply
    1,211,991.48x = 1,672,547.85 × 668,136.54
  4. Step 4: Simplify right side
    1,211,991.48x = 1,117,490,333,483.44
  5. Step 5: Solve for x
    x = 1,117,490,333,483.44/1,211,991.48
  6. Step 6: Final answer
    x = 922,028.21

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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.