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Finding the Fourth Proportional to 352,864.68, 486,955.43 and 191,719.63

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Solution

The fourth proportional to 352,864.68, 486,955.43 and 191,719.63 is: 264,574.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,864.68 : 486,955.43 = 191,719.63 : x
  2. Step 2: Convert to fraction form
    352,864.68/486,955.43 = 191,719.63/x
  3. Step 3: Cross multiply
    352,864.68x = 486,955.43 × 191,719.63
  4. Step 4: Simplify right side
    352,864.68x = 93,358,914,866.09
  5. Step 5: Solve for x
    x = 93,358,914,866.09/352,864.68
  6. Step 6: Final answer
    x = 264,574.27

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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.