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Finding the Fourth Proportional to 190,857.60, 286,286.40 and 186,483.60

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Solution

The fourth proportional to 190,857.60, 286,286.40 and 186,483.60 is: 279,725.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,857.60 : 286,286.40 = 186,483.60 : x
  2. Step 2: Convert to fraction form
    190,857.60/286,286.40 = 186,483.60/x
  3. Step 3: Cross multiply
    190,857.60x = 286,286.40 × 186,483.60
  4. Step 4: Simplify right side
    190,857.60x = 53,387,718,503.04
  5. Step 5: Solve for x
    x = 53,387,718,503.04/190,857.60
  6. Step 6: Final answer
    x = 279,725.40

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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.