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Finding the Fourth Proportional to 304,430.45, 456,636.25 and 144,621.42

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Solution

The fourth proportional to 304,430.45, 456,636.25 and 144,621.42 is: 216,927.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,430.45 : 456,636.25 = 144,621.42 : x
  2. Step 2: Convert to fraction form
    304,430.45/456,636.25 = 144,621.42/x
  3. Step 3: Cross multiply
    304,430.45x = 456,636.25 × 144,621.42
  4. Step 4: Simplify right side
    304,430.45x = 66,039,382,898.48
  5. Step 5: Solve for x
    x = 66,039,382,898.48/304,430.45
  6. Step 6: Final answer
    x = 216,927.66

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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.