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Finding the Fourth Proportional to 508,392,611.60, 762,588,917.40 and 144,839,728.40

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Solution

The fourth proportional to 508,392,611.60, 762,588,917.40 and 144,839,728.40 is: 217,259,592.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,392,611.60 : 762,588,917.40 = 144,839,728.40 : x
  2. Step 2: Convert to fraction form
    508,392,611.60/762,588,917.40 = 144,839,728.40/x
  3. Step 3: Cross multiply
    508,392,611.60x = 762,588,917.40 × 144,839,728.40
  4. Step 4: Simplify right side
    508,392,611.60x = 110,453,171,677,066,032
  5. Step 5: Solve for x
    x = 110,453,171,677,066,032/508,392,611.60
  6. Step 6: Final answer
    x = 217,259,592.60

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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.