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Finding the Fourth Proportional to 313,537.77, 432,686.75 and 177,568.34

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Solution

The fourth proportional to 313,537.77, 432,686.75 and 177,568.34 is: 245,046.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,537.77 : 432,686.75 = 177,568.34 : x
  2. Step 2: Convert to fraction form
    313,537.77/432,686.75 = 177,568.34/x
  3. Step 3: Cross multiply
    313,537.77x = 432,686.75 × 177,568.34
  4. Step 4: Simplify right side
    313,537.77x = 76,831,464,886.22
  5. Step 5: Solve for x
    x = 76,831,464,886.22/313,537.77
  6. Step 6: Final answer
    x = 245,046.92

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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.