Home / 631,669.25-871,792.47-402,153.22

Finding the Fourth Proportional to 631,669.25, 871,792.47 and 402,153.22

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Solution

The fourth proportional to 631,669.25, 871,792.47 and 402,153.22 is: 555,028.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,669.25 : 871,792.47 = 402,153.22 : x
  2. Step 2: Convert to fraction form
    631,669.25/871,792.47 = 402,153.22/x
  3. Step 3: Cross multiply
    631,669.25x = 871,792.47 × 402,153.22
  4. Step 4: Simplify right side
    631,669.25x = 350,594,150,071.99
  5. Step 5: Solve for x
    x = 350,594,150,071.99/631,669.25
  6. Step 6: Final answer
    x = 555,028.04

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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.