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Finding the Fourth Proportional to 285,554.00, 394,055.91 and 156,490.89

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Solution

The fourth proportional to 285,554.00, 394,055.91 and 156,490.89 is: 215,952.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,554.00 : 394,055.91 = 156,490.89 : x
  2. Step 2: Convert to fraction form
    285,554.00/394,055.91 = 156,490.89/x
  3. Step 3: Cross multiply
    285,554.00x = 394,055.91 × 156,490.89
  4. Step 4: Simplify right side
    285,554.00x = 61,666,160,065.66
  5. Step 5: Solve for x
    x = 61,666,160,065.66/285,554.00
  6. Step 6: Final answer
    x = 215,952.71

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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.