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Finding the Fourth Proportional to 651,112, 981,104.64 and 535,376

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Solution

The fourth proportional to 651,112, 981,104.64 and 535,376 is: 806,712.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,112 : 981,104.64 = 535,376 : x
  2. Step 2: Convert to fraction form
    651,112/981,104.64 = 535,376/x
  3. Step 3: Cross multiply
    651,112x = 981,104.64 × 535,376
  4. Step 4: Simplify right side
    651,112x = 525,259,877,744.64
  5. Step 5: Solve for x
    x = 525,259,877,744.64/651,112
  6. Step 6: Final answer
    x = 806,712.02

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.