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Finding the Fourth Proportional to 374,144.49, 516,329.51 and 223,328.97

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Solution

The fourth proportional to 374,144.49, 516,329.51 and 223,328.97 is: 308,200.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,144.49 : 516,329.51 = 223,328.97 : x
  2. Step 2: Convert to fraction form
    374,144.49/516,329.51 = 223,328.97/x
  3. Step 3: Cross multiply
    374,144.49x = 516,329.51 × 223,328.97
  4. Step 4: Simplify right side
    374,144.49x = 115,311,336,532.26
  5. Step 5: Solve for x
    x = 115,311,336,532.26/374,144.49
  6. Step 6: Final answer
    x = 308,200.01

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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.