Home / 763,686.56-1,053,183.20-519,037.76

Finding the Fourth Proportional to 763,686.56, 1,053,183.20 and 519,037.76

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Solution

The fourth proportional to 763,686.56, 1,053,183.20 and 519,037.76 is: 715,793.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,686.56 : 1,053,183.20 = 519,037.76 : x
  2. Step 2: Convert to fraction form
    763,686.56/1,053,183.20 = 519,037.76/x
  3. Step 3: Cross multiply
    763,686.56x = 1,053,183.20 × 519,037.76
  4. Step 4: Simplify right side
    763,686.56x = 546,641,848,997.63
  5. Step 5: Solve for x
    x = 546,641,848,997.63/763,686.56
  6. Step 6: Final answer
    x = 715,793.47

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1.5x scale

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.