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Finding the Fourth Proportional to 436,054.01, 601,788.20 and 261,630.74

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Solution

The fourth proportional to 436,054.01, 601,788.20 and 261,630.74 is: 361,070.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,054.01 : 601,788.20 = 261,630.74 : x
  2. Step 2: Convert to fraction form
    436,054.01/601,788.20 = 261,630.74/x
  3. Step 3: Cross multiply
    436,054.01x = 601,788.20 × 261,630.74
  4. Step 4: Simplify right side
    436,054.01x = 157,446,292,285.59
  5. Step 5: Solve for x
    x = 157,446,292,285.59/436,054.01
  6. Step 6: Final answer
    x = 361,070.63

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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.