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Finding the Fourth Proportional to 457,806.11, 631,643.58 and 360,708.93

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Solution

The fourth proportional to 457,806.11, 631,643.58 and 360,708.93 is: 497,676.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,806.11 : 631,643.58 = 360,708.93 : x
  2. Step 2: Convert to fraction form
    457,806.11/631,643.58 = 360,708.93/x
  3. Step 3: Cross multiply
    457,806.11x = 631,643.58 × 360,708.93
  4. Step 4: Simplify right side
    457,806.11x = 227,839,479,883.17
  5. Step 5: Solve for x
    x = 227,839,479,883.17/457,806.11
  6. Step 6: Final answer
    x = 497,676.81

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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.