Home / 614,769.12-848,516.76-399,535.20

Finding the Fourth Proportional to 614,769.12, 848,516.76 and 399,535.20

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Solution

The fourth proportional to 614,769.12, 848,516.76 and 399,535.20 is: 551,446.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    614,769.12 : 848,516.76 = 399,535.20 : x
  2. Step 2: Convert to fraction form
    614,769.12/848,516.76 = 399,535.20/x
  3. Step 3: Cross multiply
    614,769.12x = 848,516.76 × 399,535.20
  4. Step 4: Simplify right side
    614,769.12x = 339,012,313,409.95
  5. Step 5: Solve for x
    x = 339,012,313,409.95/614,769.12
  6. Step 6: Final answer
    x = 551,446.56

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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.