Home / 621,238.58-857,379.82-345,623.72

Finding the Fourth Proportional to 621,238.58, 857,379.82 and 345,623.72

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Solution

The fourth proportional to 621,238.58, 857,379.82 and 345,623.72 is: 477,000.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,238.58 : 857,379.82 = 345,623.72 : x
  2. Step 2: Convert to fraction form
    621,238.58/857,379.82 = 345,623.72/x
  3. Step 3: Cross multiply
    621,238.58x = 857,379.82 × 345,623.72
  4. Step 4: Simplify right side
    621,238.58x = 296,330,802,841.33
  5. Step 5: Solve for x
    x = 296,330,802,841.33/621,238.58
  6. Step 6: Final answer
    x = 477,000.00

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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.