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Finding the Fourth Proportional to 313,367.47, 432,457.45 and 177,398.61

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Solution

The fourth proportional to 313,367.47, 432,457.45 and 177,398.61 is: 244,815.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,367.47 : 432,457.45 = 177,398.61 : x
  2. Step 2: Convert to fraction form
    313,367.47/432,457.45 = 177,398.61/x
  3. Step 3: Cross multiply
    313,367.47x = 432,457.45 × 177,398.61
  4. Step 4: Simplify right side
    313,367.47x = 76,717,348,448.93
  5. Step 5: Solve for x
    x = 76,717,348,448.93/313,367.47
  6. Step 6: Final answer
    x = 244,815.93

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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.