Home / 1,270,572.53-1,753,420.53-689,820.09

Finding the Fourth Proportional to 1,270,572.53, 1,753,420.53 and 689,820.09

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Solution

The fourth proportional to 1,270,572.53, 1,753,420.53 and 689,820.09 is: 951,968.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,270,572.53 : 1,753,420.53 = 689,820.09 : x
  2. Step 2: Convert to fraction form
    1,270,572.53/1,753,420.53 = 689,820.09/x
  3. Step 3: Cross multiply
    1,270,572.53x = 1,753,420.53 × 689,820.09
  4. Step 4: Simplify right side
    1,270,572.53x = 1,209,544,704,363.35
  5. Step 5: Solve for x
    x = 1,209,544,704,363.35/1,270,572.53
  6. Step 6: Final answer
    x = 951,968.25

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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.