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Finding the Fourth Proportional to 424,007.75, 636,303.24 and 174,689.75

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Solution

The fourth proportional to 424,007.75, 636,303.24 and 174,689.75 is: 262,154.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,007.75 : 636,303.24 = 174,689.75 : x
  2. Step 2: Convert to fraction form
    424,007.75/636,303.24 = 174,689.75/x
  3. Step 3: Cross multiply
    424,007.75x = 636,303.24 × 174,689.75
  4. Step 4: Simplify right side
    424,007.75x = 111,155,653,919.79
  5. Step 5: Solve for x
    x = 111,155,653,919.79/424,007.75
  6. Step 6: Final answer
    x = 262,154.77

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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.