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Finding the Fourth Proportional to 1,177,757.76, 1,625,306 and 641,213.76

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Solution

The fourth proportional to 1,177,757.76, 1,625,306 and 641,213.76 is: 884,875.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,177,757.76 : 1,625,306 = 641,213.76 : x
  2. Step 2: Convert to fraction form
    1,177,757.76/1,625,306 = 641,213.76/x
  3. Step 3: Cross multiply
    1,177,757.76x = 1,625,306 × 641,213.76
  4. Step 4: Simplify right side
    1,177,757.76x = 1,042,168,571,410.56
  5. Step 5: Solve for x
    x = 1,042,168,571,410.56/1,177,757.76
  6. Step 6: Final answer
    x = 884,875.15

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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.