Home / 649,614.40-973,039.20-525,198.40

Finding the Fourth Proportional to 649,614.40, 973,039.20 and 525,198.40

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Solution

The fourth proportional to 649,614.40, 973,039.20 and 525,198.40 is: 786,679.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,614.40 : 973,039.20 = 525,198.40 : x
  2. Step 2: Convert to fraction form
    649,614.40/973,039.20 = 525,198.40/x
  3. Step 3: Cross multiply
    649,614.40x = 973,039.20 × 525,198.40
  4. Step 4: Simplify right side
    649,614.40x = 511,038,630,977.28
  5. Step 5: Solve for x
    x = 511,038,630,977.28/649,614.40
  6. Step 6: Final answer
    x = 786,679.96

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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.