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Finding the Fourth Proportional to 651,146, 981,155.98 and 535,410

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Solution

The fourth proportional to 651,146, 981,155.98 and 535,410 is: 806,763.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,146 : 981,155.98 = 535,410 : x
  2. Step 2: Convert to fraction form
    651,146/981,155.98 = 535,410/x
  3. Step 3: Cross multiply
    651,146x = 981,155.98 × 535,410
  4. Step 4: Simplify right side
    651,146x = 525,320,723,251.80
  5. Step 5: Solve for x
    x = 525,320,723,251.80/651,146
  6. Step 6: Final answer
    x = 806,763.34

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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.