Home / 929,817.40-1,282,985.86-521,936.44

Finding the Fourth Proportional to 929,817.40, 1,282,985.86 and 521,936.44

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Solution

The fourth proportional to 929,817.40, 1,282,985.86 and 521,936.44 is: 720,181.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    929,817.40 : 1,282,985.86 = 521,936.44 : x
  2. Step 2: Convert to fraction form
    929,817.40/1,282,985.86 = 521,936.44/x
  3. Step 3: Cross multiply
    929,817.40x = 1,282,985.86 × 521,936.44
  4. Step 4: Simplify right side
    929,817.40x = 669,637,072,338.74
  5. Step 5: Solve for x
    x = 669,637,072,338.74/929,817.40
  6. Step 6: Final answer
    x = 720,181.27

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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.