Home / 379,392.66-523,805.94-243,485.19

Finding the Fourth Proportional to 379,392.66, 523,805.94 and 243,485.19

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Solution

The fourth proportional to 379,392.66, 523,805.94 and 243,485.19 is: 336,166.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,392.66 : 523,805.94 = 243,485.19 : x
  2. Step 2: Convert to fraction form
    379,392.66/523,805.94 = 243,485.19/x
  3. Step 3: Cross multiply
    379,392.66x = 523,805.94 × 243,485.19
  4. Step 4: Simplify right side
    379,392.66x = 127,538,988,824.03
  5. Step 5: Solve for x
    x = 127,538,988,824.03/379,392.66
  6. Step 6: Final answer
    x = 336,166.20

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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.