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Finding the Fourth Proportional to 457,569.84, 631,484.18 and 253,684.71

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Solution

The fourth proportional to 457,569.84, 631,484.18 and 253,684.71 is: 350,105.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,569.84 : 631,484.18 = 253,684.71 : x
  2. Step 2: Convert to fraction form
    457,569.84/631,484.18 = 253,684.71/x
  3. Step 3: Cross multiply
    457,569.84x = 631,484.18 × 253,684.71
  4. Step 4: Simplify right side
    457,569.84x = 160,197,881,072.89
  5. Step 5: Solve for x
    x = 160,197,881,072.89/457,569.84
  6. Step 6: Final answer
    x = 350,105.86

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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.