Home / 1,330,900.65-1,996,350.98-621,000.45

Finding the Fourth Proportional to 1,330,900.65, 1,996,350.98 and 621,000.45

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Solution

The fourth proportional to 1,330,900.65, 1,996,350.98 and 621,000.45 is: 931,500.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,330,900.65 : 1,996,350.98 = 621,000.45 : x
  2. Step 2: Convert to fraction form
    1,330,900.65/1,996,350.98 = 621,000.45/x
  3. Step 3: Cross multiply
    1,330,900.65x = 1,996,350.98 × 621,000.45
  4. Step 4: Simplify right side
    1,330,900.65x = 1,239,734,853,832.94
  5. Step 5: Solve for x
    x = 1,239,734,853,832.94/1,330,900.65
  6. Step 6: Final answer
    x = 931,500.68

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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.