Home / 457,867.05-631,128.32-360,913.70

Finding the Fourth Proportional to 457,867.05, 631,128.32 and 360,913.70

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Solution

The fourth proportional to 457,867.05, 631,128.32 and 360,913.70 is: 497,486.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,867.05 : 631,128.32 = 360,913.70 : x
  2. Step 2: Convert to fraction form
    457,867.05/631,128.32 = 360,913.70/x
  3. Step 3: Cross multiply
    457,867.05x = 631,128.32 × 360,913.70
  4. Step 4: Simplify right side
    457,867.05x = 227,782,852,185.77
  5. Step 5: Solve for x
    x = 227,782,852,185.77/457,867.05
  6. Step 6: Final answer
    x = 497,486.88

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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.