Home / 811,828.06-1,120,295.14-449,267.20

Finding the Fourth Proportional to 811,828.06, 1,120,295.14 and 449,267.20

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Solution

The fourth proportional to 811,828.06, 1,120,295.14 and 449,267.20 is: 619,973.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,828.06 : 1,120,295.14 = 449,267.20 : x
  2. Step 2: Convert to fraction form
    811,828.06/1,120,295.14 = 449,267.20/x
  3. Step 3: Cross multiply
    811,828.06x = 1,120,295.14 × 449,267.20
  4. Step 4: Simplify right side
    811,828.06x = 503,311,860,721.41
  5. Step 5: Solve for x
    x = 503,311,860,721.41/811,828.06
  6. Step 6: Final answer
    x = 619,973.47

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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.