Home / 719,523,412.48-992,949,154.74-422,170,713.76

Finding the Fourth Proportional to 719,523,412.48, 992,949,154.74 and 422,170,713.76

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Solution

The fourth proportional to 719,523,412.48, 992,949,154.74 and 422,170,713.76 is: 582,599,601.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,523,412.48 : 992,949,154.74 = 422,170,713.76 : x
  2. Step 2: Convert to fraction form
    719,523,412.48/992,949,154.74 = 422,170,713.76/x
  3. Step 3: Cross multiply
    719,523,412.48x = 992,949,154.74 × 422,170,713.76
  4. Step 4: Simplify right side
    719,523,412.48x = 419,194,053,383,974,464
  5. Step 5: Solve for x
    x = 419,194,053,383,974,464/719,523,412.48
  6. Step 6: Final answer
    x = 582,599,601.50

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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.