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Finding the Fourth Proportional to 448,219.43, 672,460.46 and 144,607.43

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Solution

The fourth proportional to 448,219.43, 672,460.46 and 144,607.43 is: 216,953.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,219.43 : 672,460.46 = 144,607.43 : x
  2. Step 2: Convert to fraction form
    448,219.43/672,460.46 = 144,607.43/x
  3. Step 3: Cross multiply
    448,219.43x = 672,460.46 × 144,607.43
  4. Step 4: Simplify right side
    448,219.43x = 97,242,780,397.61
  5. Step 5: Solve for x
    x = 97,242,780,397.61/448,219.43
  6. Step 6: Final answer
    x = 216,953.51

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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.