Home / 631,440.64-871,391.16-344,965.51

Finding the Fourth Proportional to 631,440.64, 871,391.16 and 344,965.51

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Solution

The fourth proportional to 631,440.64, 871,391.16 and 344,965.51 is: 476,054.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,440.64 : 871,391.16 = 344,965.51 : x
  2. Step 2: Convert to fraction form
    631,440.64/871,391.16 = 344,965.51/x
  3. Step 3: Cross multiply
    631,440.64x = 871,391.16 × 344,965.51
  4. Step 4: Simplify right side
    631,440.64x = 300,599,895,918.89
  5. Step 5: Solve for x
    x = 300,599,895,918.89/631,440.64
  6. Step 6: Final answer
    x = 476,054.08

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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.