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Finding the Fourth Proportional to 313,402.68, 432,496.26 and 170,162.28

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Solution

The fourth proportional to 313,402.68, 432,496.26 and 170,162.28 is: 234,824.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,402.68 : 432,496.26 = 170,162.28 : x
  2. Step 2: Convert to fraction form
    313,402.68/432,496.26 = 170,162.28/x
  3. Step 3: Cross multiply
    313,402.68x = 432,496.26 × 170,162.28
  4. Step 4: Simplify right side
    313,402.68x = 73,594,549,693.07
  5. Step 5: Solve for x
    x = 73,594,549,693.07/313,402.68
  6. Step 6: Final answer
    x = 234,824.25

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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.