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Finding the Fourth Proportional to 448,467.67, 621,556.88 and 440,069.59

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Solution

The fourth proportional to 448,467.67, 621,556.88 and 440,069.59 is: 609,917.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,467.67 : 621,556.88 = 440,069.59 : x
  2. Step 2: Convert to fraction form
    448,467.67/621,556.88 = 440,069.59/x
  3. Step 3: Cross multiply
    448,467.67x = 621,556.88 × 440,069.59
  4. Step 4: Simplify right side
    448,467.67x = 273,528,281,343.28
  5. Step 5: Solve for x
    x = 273,528,281,343.28/448,467.67
  6. Step 6: Final answer
    x = 609,917.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.