Home / 889,154.21-1,333,734.81-215,234.43

Finding the Fourth Proportional to 889,154.21, 1,333,734.81 and 215,234.43

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Solution

The fourth proportional to 889,154.21, 1,333,734.81 and 215,234.43 is: 322,852.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    889,154.21 : 1,333,734.81 = 215,234.43 : x
  2. Step 2: Convert to fraction form
    889,154.21/1,333,734.81 = 215,234.43/x
  3. Step 3: Cross multiply
    889,154.21x = 1,333,734.81 × 215,234.43
  4. Step 4: Simplify right side
    889,154.21x = 287,065,651,360.04
  5. Step 5: Solve for x
    x = 287,065,651,360.04/889,154.21
  6. Step 6: Final answer
    x = 322,852.49

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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.