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Finding the Fourth Proportional to 313,695.32, 432,803.94 and 177,707.48

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Solution

The fourth proportional to 313,695.32, 432,803.94 and 177,707.48 is: 245,182.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,695.32 : 432,803.94 = 177,707.48 : x
  2. Step 2: Convert to fraction form
    313,695.32/432,803.94 = 177,707.48/x
  3. Step 3: Cross multiply
    313,695.32x = 432,803.94 × 177,707.48
  4. Step 4: Simplify right side
    313,695.32x = 76,912,497,511.47
  5. Step 5: Solve for x
    x = 76,912,497,511.47/313,695.32
  6. Step 6: Final answer
    x = 245,182.16

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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.