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Finding the Fourth Proportional to 450,651.48, 621,893.34 and 271,803.48

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Solution

The fourth proportional to 450,651.48, 621,893.34 and 271,803.48 is: 375,085.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,651.48 : 621,893.34 = 271,803.48 : x
  2. Step 2: Convert to fraction form
    450,651.48/621,893.34 = 271,803.48/x
  3. Step 3: Cross multiply
    450,651.48x = 621,893.34 × 271,803.48
  4. Step 4: Simplify right side
    450,651.48x = 169,032,774,000.82
  5. Step 5: Solve for x
    x = 169,032,774,000.82/450,651.48
  6. Step 6: Final answer
    x = 375,085.36

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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.