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Finding the Fourth Proportional to 333,678.95, 500,518.43 and 311,371.55

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Solution

The fourth proportional to 333,678.95, 500,518.43 and 311,371.55 is: 467,057.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    333,678.95 : 500,518.43 = 311,371.55 : x
  2. Step 2: Convert to fraction form
    333,678.95/500,518.43 = 311,371.55/x
  3. Step 3: Cross multiply
    333,678.95x = 500,518.43 × 311,371.55
  4. Step 4: Simplify right side
    333,678.95x = 155,847,197,795.81
  5. Step 5: Solve for x
    x = 155,847,197,795.81/333,678.95
  6. Step 6: Final answer
    x = 467,057.33

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1.5x scale

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.