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Finding the Fourth Proportional to 279,359.66, 385,524.40 and 152,043.32

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Solution

The fourth proportional to 279,359.66, 385,524.40 and 152,043.32 is: 209,824.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,359.66 : 385,524.40 = 152,043.32 : x
  2. Step 2: Convert to fraction form
    279,359.66/385,524.40 = 152,043.32/x
  3. Step 3: Cross multiply
    279,359.66x = 385,524.40 × 152,043.32
  4. Step 4: Simplify right side
    279,359.66x = 58,616,409,717.01
  5. Step 5: Solve for x
    x = 58,616,409,717.01/279,359.66
  6. Step 6: Final answer
    x = 209,824.17

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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.