Home / 580,631.80-869,795.70-511,358.20

Finding the Fourth Proportional to 580,631.80, 869,795.70 and 511,358.20

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Solution

The fourth proportional to 580,631.80, 869,795.70 and 511,358.20 is: 766,022.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    580,631.80 : 869,795.70 = 511,358.20 : x
  2. Step 2: Convert to fraction form
    580,631.80/869,795.70 = 511,358.20/x
  3. Step 3: Cross multiply
    580,631.80x = 869,795.70 × 511,358.20
  4. Step 4: Simplify right side
    580,631.80x = 444,777,163,519.74
  5. Step 5: Solve for x
    x = 444,777,163,519.74/580,631.80
  6. Step 6: Final answer
    x = 766,022.74

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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.