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Finding the Fourth Proportional to 317,808.95, 438,467.72 and 181,793.34

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Solution

The fourth proportional to 317,808.95, 438,467.72 and 181,793.34 is: 250,812.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,808.95 : 438,467.72 = 181,793.34 : x
  2. Step 2: Convert to fraction form
    317,808.95/438,467.72 = 181,793.34/x
  3. Step 3: Cross multiply
    317,808.95x = 438,467.72 × 181,793.34
  4. Step 4: Simplify right side
    317,808.95x = 79,710,510,392.02
  5. Step 5: Solve for x
    x = 79,710,510,392.02/317,808.95
  6. Step 6: Final answer
    x = 250,812.67

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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.