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Finding the Fourth Proportional to 790,157,461.50, 1,184,984,978.85 and 738,573,013.26

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Solution

The fourth proportional to 790,157,461.50, 1,184,984,978.85 and 738,573,013.26 is: 1,107,624,706.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,157,461.50 : 1,184,984,978.85 = 738,573,013.26 : x
  2. Step 2: Convert to fraction form
    790,157,461.50/1,184,984,978.85 = 738,573,013.26/x
  3. Step 3: Cross multiply
    790,157,461.50x = 1,184,984,978.85 × 738,573,013.26
  4. Step 4: Simplify right side
    790,157,461.50x = 875,197,926,497,081,728
  5. Step 5: Solve for x
    x = 875,197,926,497,081,728/790,157,461.50
  6. Step 6: Final answer
    x = 1,107,624,706.64

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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.