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Finding the Fourth Proportional to 303,359.10, 455,038.65 and 303,359.10

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Solution

The fourth proportional to 303,359.10, 455,038.65 and 303,359.10 is: 455,038.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,359.10 : 455,038.65 = 303,359.10 : x
  2. Step 2: Convert to fraction form
    303,359.10/455,038.65 = 303,359.10/x
  3. Step 3: Cross multiply
    303,359.10x = 455,038.65 × 303,359.10
  4. Step 4: Simplify right side
    303,359.10x = 138,040,115,329.22
  5. Step 5: Solve for x
    x = 138,040,115,329.22/303,359.10
  6. Step 6: Final answer
    x = 455,038.65

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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.