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Finding the Fourth Proportional to 403,599.60, 606,711.60 and 286,084.80

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Solution

The fourth proportional to 403,599.60, 606,711.60 and 286,084.80 is: 430,057.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,599.60 : 606,711.60 = 286,084.80 : x
  2. Step 2: Convert to fraction form
    403,599.60/606,711.60 = 286,084.80/x
  3. Step 3: Cross multiply
    403,599.60x = 606,711.60 × 286,084.80
  4. Step 4: Simplify right side
    403,599.60x = 173,570,966,743.68
  5. Step 5: Solve for x
    x = 173,570,966,743.68/403,599.60
  6. Step 6: Final answer
    x = 430,057.33

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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.