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Finding the Fourth Proportional to 313,756.92, 433,001.16 and 177,817.32

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Solution

The fourth proportional to 313,756.92, 433,001.16 and 177,817.32 is: 245,397.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,756.92 : 433,001.16 = 177,817.32 : x
  2. Step 2: Convert to fraction form
    313,756.92/433,001.16 = 177,817.32/x
  3. Step 3: Cross multiply
    313,756.92x = 433,001.16 × 177,817.32
  4. Step 4: Simplify right side
    313,756.92x = 76,995,105,828.09
  5. Step 5: Solve for x
    x = 76,995,105,828.09/313,756.92
  6. Step 6: Final answer
    x = 245,397.32

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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.