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Finding the Fourth Proportional to 286,534.67, 429,777.24 and 96,990.97

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Solution

The fourth proportional to 286,534.67, 429,777.24 and 96,990.97 is: 145,478.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,534.67 : 429,777.24 = 96,990.97 : x
  2. Step 2: Convert to fraction form
    286,534.67/429,777.24 = 96,990.97/x
  3. Step 3: Cross multiply
    286,534.67x = 429,777.24 × 96,990.97
  4. Step 4: Simplify right side
    286,534.67x = 41,684,511,304.77
  5. Step 5: Solve for x
    x = 41,684,511,304.77/286,534.67
  6. Step 6: Final answer
    x = 145,478.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.