Home / 868,647.19-1,302,989.70-611,428.64

Finding the Fourth Proportional to 868,647.19, 1,302,989.70 and 611,428.64

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Solution

The fourth proportional to 868,647.19, 1,302,989.70 and 611,428.64 is: 917,156.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    868,647.19 : 1,302,989.70 = 611,428.64 : x
  2. Step 2: Convert to fraction form
    868,647.19/1,302,989.70 = 611,428.64/x
  3. Step 3: Cross multiply
    868,647.19x = 1,302,989.70 × 611,428.64
  4. Step 4: Simplify right side
    868,647.19x = 796,685,220,205.01
  5. Step 5: Solve for x
    x = 796,685,220,205.01/868,647.19
  6. Step 6: Final answer
    x = 917,156.27

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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.