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Finding the Fourth Proportional to 807,188.40, 1,210,685.40 and 333,824.40

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Solution

The fourth proportional to 807,188.40, 1,210,685.40 and 333,824.40 is: 500,696.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,188.40 : 1,210,685.40 = 333,824.40 : x
  2. Step 2: Convert to fraction form
    807,188.40/1,210,685.40 = 333,824.40/x
  3. Step 3: Cross multiply
    807,188.40x = 1,210,685.40 × 333,824.40
  4. Step 4: Simplify right side
    807,188.40x = 404,156,327,243.76
  5. Step 5: Solve for x
    x = 404,156,327,243.76/807,188.40
  6. Step 6: Final answer
    x = 500,696.40

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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.