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Finding the Fourth Proportional to 532,485,760, 798,728,640 and 129,046,144

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Solution

The fourth proportional to 532,485,760, 798,728,640 and 129,046,144 is: 193,569,216

Step by Step Solution

  1. Step 1: Write the proportion equation
    532,485,760 : 798,728,640 = 129,046,144 : x
  2. Step 2: Convert to fraction form
    532,485,760/798,728,640 = 129,046,144/x
  3. Step 3: Cross multiply
    532,485,760x = 798,728,640 × 129,046,144
  4. Step 4: Simplify right side
    532,485,760x = 103,072,851,094,364,160
  5. Step 5: Solve for x
    x = 103,072,851,094,364,160/532,485,760
  6. Step 6: Final answer
    x = 193,569,216

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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.