Home / 763,688.56-1,053,185.96-519,039.76

Finding the Fourth Proportional to 763,688.56, 1,053,185.96 and 519,039.76

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Solution

The fourth proportional to 763,688.56, 1,053,185.96 and 519,039.76 is: 715,796.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,688.56 : 1,053,185.96 = 519,039.76 : x
  2. Step 2: Convert to fraction form
    763,688.56/1,053,185.96 = 519,039.76/x
  3. Step 3: Cross multiply
    763,688.56x = 1,053,185.96 × 519,039.76
  4. Step 4: Simplify right side
    763,688.56x = 546,645,387,913.77
  5. Step 5: Solve for x
    x = 546,645,387,913.77/763,688.56
  6. Step 6: Final answer
    x = 715,796.22

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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.