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Finding the Fourth Proportional to 317,376.72, 438,007.59 and 174,164.76

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Solution

The fourth proportional to 317,376.72, 438,007.59 and 174,164.76 is: 240,362.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,376.72 : 438,007.59 = 174,164.76 : x
  2. Step 2: Convert to fraction form
    317,376.72/438,007.59 = 174,164.76/x
  3. Step 3: Cross multiply
    317,376.72x = 438,007.59 × 174,164.76
  4. Step 4: Simplify right side
    317,376.72x = 76,285,486,790.53
  5. Step 5: Solve for x
    x = 76,285,486,790.53/317,376.72
  6. Step 6: Final answer
    x = 240,362.58

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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.