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Finding the Fourth Proportional to 362,386.54, 500,012.89 and 219,143.53

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Solution

The fourth proportional to 362,386.54, 500,012.89 and 219,143.53 is: 302,369.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,386.54 : 500,012.89 = 219,143.53 : x
  2. Step 2: Convert to fraction form
    362,386.54/500,012.89 = 219,143.53/x
  3. Step 3: Cross multiply
    362,386.54x = 500,012.89 × 219,143.53
  4. Step 4: Simplify right side
    362,386.54x = 109,574,589,760.10
  5. Step 5: Solve for x
    x = 109,574,589,760.10/362,386.54
  6. Step 6: Final answer
    x = 302,369.37

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1.5x scale

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.