Home / 879,211.67-1,213,377.32-492,065.88

Finding the Fourth Proportional to 879,211.67, 1,213,377.32 and 492,065.88

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Solution

The fourth proportional to 879,211.67, 1,213,377.32 and 492,065.88 is: 679,087.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,211.67 : 1,213,377.32 = 492,065.88 : x
  2. Step 2: Convert to fraction form
    879,211.67/1,213,377.32 = 492,065.88/x
  3. Step 3: Cross multiply
    879,211.67x = 1,213,377.32 × 492,065.88
  4. Step 4: Simplify right side
    879,211.67x = 597,061,576,277.51
  5. Step 5: Solve for x
    x = 597,061,576,277.51/879,211.67
  6. Step 6: Final answer
    x = 679,087.41

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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.