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Finding the Fourth Proportional to 608,711.33, 913,057.76 and 209,355.56

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Solution

The fourth proportional to 608,711.33, 913,057.76 and 209,355.56 is: 314,030.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,711.33 : 913,057.76 = 209,355.56 : x
  2. Step 2: Convert to fraction form
    608,711.33/913,057.76 = 209,355.56/x
  3. Step 3: Cross multiply
    608,711.33x = 913,057.76 × 209,355.56
  4. Step 4: Simplify right side
    608,711.33x = 191,153,718,039.21
  5. Step 5: Solve for x
    x = 191,153,718,039.21/608,711.33
  6. Step 6: Final answer
    x = 314,030.16

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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.