Home / 1,201,981.66-1,658,683.40-658,107.56

Finding the Fourth Proportional to 1,201,981.66, 1,658,683.40 and 658,107.56

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Solution

The fourth proportional to 1,201,981.66, 1,658,683.40 and 658,107.56 is: 908,160.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,201,981.66 : 1,658,683.40 = 658,107.56 : x
  2. Step 2: Convert to fraction form
    1,201,981.66/1,658,683.40 = 658,107.56/x
  3. Step 3: Cross multiply
    1,201,981.66x = 1,658,683.40 × 658,107.56
  4. Step 4: Simplify right side
    1,201,981.66x = 1,091,592,085,186.50
  5. Step 5: Solve for x
    x = 1,091,592,085,186.50/1,201,981.66
  6. Step 6: Final answer
    x = 908,160.35

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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.