Home / 521,311.02-719,241.91-291,834.51

Finding the Fourth Proportional to 521,311.02, 719,241.91 and 291,834.51

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Solution

The fourth proportional to 521,311.02, 719,241.91 and 291,834.51 is: 402,637.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,311.02 : 719,241.91 = 291,834.51 : x
  2. Step 2: Convert to fraction form
    521,311.02/719,241.91 = 291,834.51/x
  3. Step 3: Cross multiply
    521,311.02x = 719,241.91 × 291,834.51
  4. Step 4: Simplify right side
    521,311.02x = 209,899,606,949.57
  5. Step 5: Solve for x
    x = 209,899,606,949.57/521,311.02
  6. Step 6: Final answer
    x = 402,637.97

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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.