Home / 829,411.20-1,143,997.80-553,629.96

Finding the Fourth Proportional to 829,411.20, 1,143,997.80 and 553,629.96

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Solution

The fourth proportional to 829,411.20, 1,143,997.80 and 553,629.96 is: 763,615.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    829,411.20 : 1,143,997.80 = 553,629.96 : x
  2. Step 2: Convert to fraction form
    829,411.20/1,143,997.80 = 553,629.96/x
  3. Step 3: Cross multiply
    829,411.20x = 1,143,997.80 × 553,629.96
  4. Step 4: Simplify right side
    829,411.20x = 633,351,456,254.09
  5. Step 5: Solve for x
    x = 633,351,456,254.09/829,411.20
  6. Step 6: Final answer
    x = 763,615.75

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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.