Home / 644,824.79-889,787.55-372,851.53

Finding the Fourth Proportional to 644,824.79, 889,787.55 and 372,851.53

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Solution

The fourth proportional to 644,824.79, 889,787.55 and 372,851.53 is: 514,494.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,824.79 : 889,787.55 = 372,851.53 : x
  2. Step 2: Convert to fraction form
    644,824.79/889,787.55 = 372,851.53/x
  3. Step 3: Cross multiply
    644,824.79x = 889,787.55 × 372,851.53
  4. Step 4: Simplify right side
    644,824.79x = 331,758,649,392.45
  5. Step 5: Solve for x
    x = 331,758,649,392.45/644,824.79
  6. Step 6: Final answer
    x = 514,494.25

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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.