Home / 1,211,412.90-1,671,680.79-695,057.34

Finding the Fourth Proportional to 1,211,412.90, 1,671,680.79 and 695,057.34

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Solution

The fourth proportional to 1,211,412.90, 1,671,680.79 and 695,057.34 is: 959,139.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,211,412.90 : 1,671,680.79 = 695,057.34 : x
  2. Step 2: Convert to fraction form
    1,211,412.90/1,671,680.79 = 695,057.34/x
  3. Step 3: Cross multiply
    1,211,412.90x = 1,671,680.79 × 695,057.34
  4. Step 4: Simplify right side
    1,211,412.90x = 1,161,914,003,226.50
  5. Step 5: Solve for x
    x = 1,161,914,003,226.50/1,211,412.90
  6. Step 6: Final answer
    x = 959,139.53

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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.