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Finding the Fourth Proportional to 591,990.51, 816,930.32 and 323,712.75

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Solution

The fourth proportional to 591,990.51, 816,930.32 and 323,712.75 is: 446,714.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    591,990.51 : 816,930.32 = 323,712.75 : x
  2. Step 2: Convert to fraction form
    591,990.51/816,930.32 = 323,712.75/x
  3. Step 3: Cross multiply
    591,990.51x = 816,930.32 × 323,712.75
  4. Step 4: Simplify right side
    591,990.51x = 264,450,758,827.02
  5. Step 5: Solve for x
    x = 264,450,758,827.02/591,990.51
  6. Step 6: Final answer
    x = 446,714.52

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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.