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Finding the Fourth Proportional to 447,051.74, 616,887.23 and 253,421.24

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Solution

The fourth proportional to 447,051.74, 616,887.23 and 253,421.24 is: 349,696.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,051.74 : 616,887.23 = 253,421.24 : x
  2. Step 2: Convert to fraction form
    447,051.74/616,887.23 = 253,421.24/x
  3. Step 3: Cross multiply
    447,051.74x = 616,887.23 × 253,421.24
  4. Step 4: Simplify right side
    447,051.74x = 156,332,322,415.22
  5. Step 5: Solve for x
    x = 156,332,322,415.22/447,051.74
  6. Step 6: Final answer
    x = 349,696.27

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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.