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Finding the Fourth Proportional to 303,539.10, 455,308.65 and 303,539.10

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Solution

The fourth proportional to 303,539.10, 455,308.65 and 303,539.10 is: 455,308.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,539.10 : 455,308.65 = 303,539.10 : x
  2. Step 2: Convert to fraction form
    303,539.10/455,308.65 = 303,539.10/x
  3. Step 3: Cross multiply
    303,539.10x = 455,308.65 × 303,539.10
  4. Step 4: Simplify right side
    303,539.10x = 138,203,977,843.22
  5. Step 5: Solve for x
    x = 138,203,977,843.22/303,539.10
  6. Step 6: Final answer
    x = 455,308.65

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1.5x scale

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.