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Finding the Fourth Proportional to 374,145.49, 516,330.89 and 223,329.97

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Solution

The fourth proportional to 374,145.49, 516,330.89 and 223,329.97 is: 308,201.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,145.49 : 516,330.89 = 223,329.97 : x
  2. Step 2: Convert to fraction form
    374,145.49/516,330.89 = 223,329.97/x
  3. Step 3: Cross multiply
    374,145.49x = 516,330.89 × 223,329.97
  4. Step 4: Simplify right side
    374,145.49x = 115,312,162,173.77
  5. Step 5: Solve for x
    x = 115,312,162,173.77/374,145.49
  6. Step 6: Final answer
    x = 308,201.40

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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.