Home / 663,421.06-914,797.56-448,187.41

Finding the Fourth Proportional to 663,421.06, 914,797.56 and 448,187.41

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Solution

The fourth proportional to 663,421.06, 914,797.56 and 448,187.41 is: 618,009.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,421.06 : 914,797.56 = 448,187.41 : x
  2. Step 2: Convert to fraction form
    663,421.06/914,797.56 = 448,187.41/x
  3. Step 3: Cross multiply
    663,421.06x = 914,797.56 × 448,187.41
  4. Step 4: Simplify right side
    663,421.06x = 410,000,746,803.73
  5. Step 5: Solve for x
    x = 410,000,746,803.73/663,421.06
  6. Step 6: Final answer
    x = 618,009.85

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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.