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Finding the Fourth Proportional to 484,875.68, 668,783.76 and 323,649.44

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Solution

The fourth proportional to 484,875.68, 668,783.76 and 323,649.44 is: 446,406.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,875.68 : 668,783.76 = 323,649.44 : x
  2. Step 2: Convert to fraction form
    484,875.68/668,783.76 = 323,649.44/x
  3. Step 3: Cross multiply
    484,875.68x = 668,783.76 × 323,649.44
  4. Step 4: Simplify right side
    484,875.68x = 216,451,489,405.09
  5. Step 5: Solve for x
    x = 216,451,489,405.09/484,875.68
  6. Step 6: Final answer
    x = 446,406.16

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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.