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Finding the Fourth Proportional to 610,416,611.30, 915,680,904.15 and 201,473,660.90

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Solution

The fourth proportional to 610,416,611.30, 915,680,904.15 and 201,473,660.90 is: 302,228,970.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,416,611.30 : 915,680,904.15 = 201,473,660.90 : x
  2. Step 2: Convert to fraction form
    610,416,611.30/915,680,904.15 = 201,473,660.90/x
  3. Step 3: Cross multiply
    610,416,611.30x = 915,680,904.15 × 201,473,660.90
  4. Step 4: Simplify right side
    610,416,611.30x = 184,485,583,975,322,496
  5. Step 5: Solve for x
    x = 184,485,583,975,322,496/610,416,611.30
  6. Step 6: Final answer
    x = 302,228,970.44

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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.