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Finding the Fourth Proportional to 456,129.05, 629,456.51 and 254,925.05

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Solution

The fourth proportional to 456,129.05, 629,456.51 and 254,925.05 is: 351,795.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,129.05 : 629,456.51 = 254,925.05 : x
  2. Step 2: Convert to fraction form
    456,129.05/629,456.51 = 254,925.05/x
  3. Step 3: Cross multiply
    456,129.05x = 629,456.51 × 254,925.05
  4. Step 4: Simplify right side
    456,129.05x = 160,464,229,137.29
  5. Step 5: Solve for x
    x = 160,464,229,137.29/456,129.05
  6. Step 6: Final answer
    x = 351,795.68

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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.