Home / 1,105,611.58-1,658,411.92-431,761.33

Finding the Fourth Proportional to 1,105,611.58, 1,658,411.92 and 431,761.33

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Solution

The fourth proportional to 1,105,611.58, 1,658,411.92 and 431,761.33 is: 647,639.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,105,611.58 : 1,658,411.92 = 431,761.33 : x
  2. Step 2: Convert to fraction form
    1,105,611.58/1,658,411.92 = 431,761.33/x
  3. Step 3: Cross multiply
    1,105,611.58x = 1,658,411.92 × 431,761.33
  4. Step 4: Simplify right side
    1,105,611.58x = 716,038,132,660.73
  5. Step 5: Solve for x
    x = 716,038,132,660.73/1,105,611.58
  6. Step 6: Final answer
    x = 647,639.86

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1.5x scale

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.