Home / 448,336.48-669,647.39-405,576.13

Finding the Fourth Proportional to 448,336.48, 669,647.39 and 405,576.13

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Solution

The fourth proportional to 448,336.48, 669,647.39 and 405,576.13 is: 605,779.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,336.48 : 669,647.39 = 405,576.13 : x
  2. Step 2: Convert to fraction form
    448,336.48/669,647.39 = 405,576.13/x
  3. Step 3: Cross multiply
    448,336.48x = 669,647.39 × 405,576.13
  4. Step 4: Simplify right side
    448,336.48x = 271,592,993,705.77
  5. Step 5: Solve for x
    x = 271,592,993,705.77/448,336.48
  6. Step 6: Final answer
    x = 605,779.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.