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Finding the Fourth Proportional to 956,658, 1,435,052.61 and 316,960.50

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Solution

The fourth proportional to 956,658, 1,435,052.61 and 316,960.50 is: 475,462.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    956,658 : 1,435,052.61 = 316,960.50 : x
  2. Step 2: Convert to fraction form
    956,658/1,435,052.61 = 316,960.50/x
  3. Step 3: Cross multiply
    956,658x = 1,435,052.61 × 316,960.50
  4. Step 4: Simplify right side
    956,658x = 454,854,992,791.91
  5. Step 5: Solve for x
    x = 454,854,992,791.91/956,658
  6. Step 6: Final answer
    x = 475,462.49

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.