Home / 1,161,738.32-1,603,193.63-645,576.21

Finding the Fourth Proportional to 1,161,738.32, 1,603,193.63 and 645,576.21

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Solution

The fourth proportional to 1,161,738.32, 1,603,193.63 and 645,576.21 is: 890,892.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,161,738.32 : 1,603,193.63 = 645,576.21 : x
  2. Step 2: Convert to fraction form
    1,161,738.32/1,603,193.63 = 645,576.21/x
  3. Step 3: Cross multiply
    1,161,738.32x = 1,603,193.63 × 645,576.21
  4. Step 4: Simplify right side
    1,161,738.32x = 1,034,983,664,323.66
  5. Step 5: Solve for x
    x = 1,034,983,664,323.66/1,161,738.32
  6. Step 6: Final answer
    x = 890,892.25

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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.