Home / 648,834.05-971,893.92-521,786.36

Finding the Fourth Proportional to 648,834.05, 971,893.92 and 521,786.36

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Solution

The fourth proportional to 648,834.05, 971,893.92 and 521,786.36 is: 781,588.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,834.05 : 971,893.92 = 521,786.36 : x
  2. Step 2: Convert to fraction form
    648,834.05/971,893.92 = 521,786.36/x
  3. Step 3: Cross multiply
    648,834.05x = 971,893.92 × 521,786.36
  4. Step 4: Simplify right side
    648,834.05x = 507,120,995,209.37
  5. Step 5: Solve for x
    x = 507,120,995,209.37/648,834.05
  6. Step 6: Final answer
    x = 781,588.13

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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.