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Finding the Fourth Proportional to 317,369.70, 437,970.15 and 181,406.55

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Solution

The fourth proportional to 317,369.70, 437,970.15 and 181,406.55 is: 250,341.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,369.70 : 437,970.15 = 181,406.55 : x
  2. Step 2: Convert to fraction form
    317,369.70/437,970.15 = 181,406.55/x
  3. Step 3: Cross multiply
    317,369.70x = 437,970.15 × 181,406.55
  4. Step 4: Simplify right side
    317,369.70x = 79,450,653,914.48
  5. Step 5: Solve for x
    x = 79,450,653,914.48/317,369.70
  6. Step 6: Final answer
    x = 250,341.02

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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.