Home / 304,021.10-456,031.65-82,405.10

Finding the Fourth Proportional to 304,021.10, 456,031.65 and 82,405.10

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Solution

The fourth proportional to 304,021.10, 456,031.65 and 82,405.10 is: 123,607.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,021.10 : 456,031.65 = 82,405.10 : x
  2. Step 2: Convert to fraction form
    304,021.10/456,031.65 = 82,405.10/x
  3. Step 3: Cross multiply
    304,021.10x = 456,031.65 × 82,405.10
  4. Step 4: Simplify right side
    304,021.10x = 37,579,333,721.42
  5. Step 5: Solve for x
    x = 37,579,333,721.42/304,021.10
  6. Step 6: Final answer
    x = 123,607.65

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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.