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Finding the Fourth Proportional to 304,607.10, 456,411.26 and 215,700.96

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Solution

The fourth proportional to 304,607.10, 456,411.26 and 215,700.96 is: 323,197.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,607.10 : 456,411.26 = 215,700.96 : x
  2. Step 2: Convert to fraction form
    304,607.10/456,411.26 = 215,700.96/x
  3. Step 3: Cross multiply
    304,607.10x = 456,411.26 × 215,700.96
  4. Step 4: Simplify right side
    304,607.10x = 98,448,346,936.81
  5. Step 5: Solve for x
    x = 98,448,346,936.81/304,607.10
  6. Step 6: Final answer
    x = 323,197.81

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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.