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Finding the Fourth Proportional to 448,525.99, 672,788.99 and 307,858.15

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Solution

The fourth proportional to 448,525.99, 672,788.99 and 307,858.15 is: 461,787.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,525.99 : 672,788.99 = 307,858.15 : x
  2. Step 2: Convert to fraction form
    448,525.99/672,788.99 = 307,858.15/x
  3. Step 3: Cross multiply
    448,525.99x = 672,788.99 × 307,858.15
  4. Step 4: Simplify right side
    448,525.99x = 207,123,573,801.77
  5. Step 5: Solve for x
    x = 207,123,573,801.77/448,525.99
  6. Step 6: Final answer
    x = 461,787.23

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.