Home / 691,880.40-1,040,153.40-589,237.20

Finding the Fourth Proportional to 691,880.40, 1,040,153.40 and 589,237.20

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Solution

The fourth proportional to 691,880.40, 1,040,153.40 and 589,237.20 is: 885,842.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,880.40 : 1,040,153.40 = 589,237.20 : x
  2. Step 2: Convert to fraction form
    691,880.40/1,040,153.40 = 589,237.20/x
  3. Step 3: Cross multiply
    691,880.40x = 1,040,153.40 × 589,237.20
  4. Step 4: Simplify right side
    691,880.40x = 612,897,076,986.48
  5. Step 5: Solve for x
    x = 612,897,076,986.48/691,880.40
  6. Step 6: Final answer
    x = 885,842.52

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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.