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Finding the Fourth Proportional to 317,813.50, 438,585.23 and 174,576.74

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Solution

The fourth proportional to 317,813.50, 438,585.23 and 174,576.74 is: 240,917.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,813.50 : 438,585.23 = 174,576.74 : x
  2. Step 2: Convert to fraction form
    317,813.50/438,585.23 = 174,576.74/x
  3. Step 3: Cross multiply
    317,813.50x = 438,585.23 × 174,576.74
  4. Step 4: Simplify right side
    317,813.50x = 76,566,778,792.67
  5. Step 5: Solve for x
    x = 76,566,778,792.67/317,813.50
  6. Step 6: Final answer
    x = 240,917.33

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1.5x scale

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.