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Finding the Fourth Proportional to 313,496.80, 432,622.56 and 177,527.20

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Solution

The fourth proportional to 313,496.80, 432,622.56 and 177,527.20 is: 244,985.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,496.80 : 432,622.56 = 177,527.20 : x
  2. Step 2: Convert to fraction form
    313,496.80/432,622.56 = 177,527.20/x
  3. Step 3: Cross multiply
    313,496.80x = 432,622.56 × 177,527.20
  4. Step 4: Simplify right side
    313,496.80x = 76,802,271,733.63
  5. Step 5: Solve for x
    x = 76,802,271,733.63/313,496.80
  6. Step 6: Final answer
    x = 244,985.82

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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.