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Finding the Fourth Proportional to 807,783.92, 1,114,696.32 and 445,206.68

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Solution

The fourth proportional to 807,783.92, 1,114,696.32 and 445,206.68 is: 614,360.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,783.92 : 1,114,696.32 = 445,206.68 : x
  2. Step 2: Convert to fraction form
    807,783.92/1,114,696.32 = 445,206.68/x
  3. Step 3: Cross multiply
    807,783.92x = 1,114,696.32 × 445,206.68
  4. Step 4: Simplify right side
    807,783.92x = 496,270,247,835.42
  5. Step 5: Solve for x
    x = 496,270,247,835.42/807,783.92
  6. Step 6: Final answer
    x = 614,360.15

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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.