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Finding the Fourth Proportional to 448,309.60, 672,831.60 and 444,810.40

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Solution

The fourth proportional to 448,309.60, 672,831.60 and 444,810.40 is: 667,579.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,309.60 : 672,831.60 = 444,810.40 : x
  2. Step 2: Convert to fraction form
    448,309.60/672,831.60 = 444,810.40/x
  3. Step 3: Cross multiply
    448,309.60x = 672,831.60 × 444,810.40
  4. Step 4: Simplify right side
    448,309.60x = 299,282,493,128.64
  5. Step 5: Solve for x
    x = 299,282,493,128.64/448,309.60
  6. Step 6: Final answer
    x = 667,579.93

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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.