Home / 989,859.21-1,366,005.70-537,150.21

Finding the Fourth Proportional to 989,859.21, 1,366,005.70 and 537,150.21

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Solution

The fourth proportional to 989,859.21, 1,366,005.70 and 537,150.21 is: 741,267.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,859.21 : 1,366,005.70 = 537,150.21 : x
  2. Step 2: Convert to fraction form
    989,859.21/1,366,005.70 = 537,150.21/x
  3. Step 3: Cross multiply
    989,859.21x = 1,366,005.70 × 537,150.21
  4. Step 4: Simplify right side
    989,859.21x = 733,750,244,165.11
  5. Step 5: Solve for x
    x = 733,750,244,165.11/989,859.21
  6. Step 6: Final answer
    x = 741,267.28

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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.