Home / 631,444.78-871,410.90-376,943.68

Finding the Fourth Proportional to 631,444.78, 871,410.90 and 376,943.68

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Solution

The fourth proportional to 631,444.78, 871,410.90 and 376,943.68 is: 520,192.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,444.78 : 871,410.90 = 376,943.68 : x
  2. Step 2: Convert to fraction form
    631,444.78/871,410.90 = 376,943.68/x
  3. Step 3: Cross multiply
    631,444.78x = 871,410.90 × 376,943.68
  4. Step 4: Simplify right side
    631,444.78x = 328,472,831,438.11
  5. Step 5: Solve for x
    x = 328,472,831,438.11/631,444.78
  6. Step 6: Final answer
    x = 520,192.49

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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.