Home / 664,030.72-916,269.90-377,519.14

Finding the Fourth Proportional to 664,030.72, 916,269.90 and 377,519.14

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Solution

The fourth proportional to 664,030.72, 916,269.90 and 377,519.14 is: 520,923.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,030.72 : 916,269.90 = 377,519.14 : x
  2. Step 2: Convert to fraction form
    664,030.72/916,269.90 = 377,519.14/x
  3. Step 3: Cross multiply
    664,030.72x = 916,269.90 × 377,519.14
  4. Step 4: Simplify right side
    664,030.72x = 345,909,424,655.89
  5. Step 5: Solve for x
    x = 345,909,424,655.89/664,030.72
  6. Step 6: Final answer
    x = 520,923.83

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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.