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Finding the Fourth Proportional to 313,291.73, 432,331.40 and 177,322.76

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Solution

The fourth proportional to 313,291.73, 432,331.40 and 177,322.76 is: 244,699.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,291.73 : 432,331.40 = 177,322.76 : x
  2. Step 2: Convert to fraction form
    313,291.73/432,331.40 = 177,322.76/x
  3. Step 3: Cross multiply
    313,291.73x = 432,331.40 × 177,322.76
  4. Step 4: Simplify right side
    313,291.73x = 76,662,194,366.87
  5. Step 5: Solve for x
    x = 76,662,194,366.87/313,291.73
  6. Step 6: Final answer
    x = 244,699.07

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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.