Home / 957,190.32-1,320,905.61-521,611.47

Finding the Fourth Proportional to 957,190.32, 1,320,905.61 and 521,611.47

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Solution

The fourth proportional to 957,190.32, 1,320,905.61 and 521,611.47 is: 719,814.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    957,190.32 : 1,320,905.61 = 521,611.47 : x
  2. Step 2: Convert to fraction form
    957,190.32/1,320,905.61 = 521,611.47/x
  3. Step 3: Cross multiply
    957,190.32x = 1,320,905.61 × 521,611.47
  4. Step 4: Simplify right side
    957,190.32x = 688,999,516,963.35
  5. Step 5: Solve for x
    x = 688,999,516,963.35/957,190.32
  6. Step 6: Final answer
    x = 719,814.55

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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.