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Finding the Fourth Proportional to 882,536,979.75, 1,217,810,905.03 and 543,391,599.75

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Solution

The fourth proportional to 882,536,979.75, 1,217,810,905.03 and 543,391,599.75 is: 749,824,915.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    882,536,979.75 : 1,217,810,905.03 = 543,391,599.75 : x
  2. Step 2: Convert to fraction form
    882,536,979.75/1,217,810,905.03 = 543,391,599.75/x
  3. Step 3: Cross multiply
    882,536,979.75x = 1,217,810,905.03 × 543,391,599.75
  4. Step 4: Simplify right side
    882,536,979.75x = 661,748,215,877,246,976
  5. Step 5: Solve for x
    x = 661,748,215,877,246,976/882,536,979.75
  6. Step 6: Final answer
    x = 749,824,915.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.