Home / 877,573.80-1,211,028.65-490,392.41

Finding the Fourth Proportional to 877,573.80, 1,211,028.65 and 490,392.41

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Solution

The fourth proportional to 877,573.80, 1,211,028.65 and 490,392.41 is: 676,728.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,573.80 : 1,211,028.65 = 490,392.41 : x
  2. Step 2: Convert to fraction form
    877,573.80/1,211,028.65 = 490,392.41/x
  3. Step 3: Cross multiply
    877,573.80x = 1,211,028.65 × 490,392.41
  4. Step 4: Simplify right side
    877,573.80x = 593,879,251,584.41
  5. Step 5: Solve for x
    x = 593,879,251,584.41/877,573.80
  6. Step 6: Final answer
    x = 676,728.56

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1.5x scale

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.