Home / 603,628.20-905,442.30-391,051.80

Finding the Fourth Proportional to 603,628.20, 905,442.30 and 391,051.80

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Solution

The fourth proportional to 603,628.20, 905,442.30 and 391,051.80 is: 586,577.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,628.20 : 905,442.30 = 391,051.80 : x
  2. Step 2: Convert to fraction form
    603,628.20/905,442.30 = 391,051.80/x
  3. Step 3: Cross multiply
    603,628.20x = 905,442.30 × 391,051.80
  4. Step 4: Simplify right side
    603,628.20x = 354,074,841,211.14
  5. Step 5: Solve for x
    x = 354,074,841,211.14/603,628.20
  6. Step 6: Final answer
    x = 586,577.70

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Similar ratio
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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.