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Finding the Fourth Proportional to 303,421.82, 418,718.26 and 174,358.76

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Solution

The fourth proportional to 303,421.82, 418,718.26 and 174,358.76 is: 240,612.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,421.82 : 418,718.26 = 174,358.76 : x
  2. Step 2: Convert to fraction form
    303,421.82/418,718.26 = 174,358.76/x
  3. Step 3: Cross multiply
    303,421.82x = 418,718.26 × 174,358.76
  4. Step 4: Simplify right side
    303,421.82x = 73,007,196,602.96
  5. Step 5: Solve for x
    x = 73,007,196,602.96/303,421.82
  6. Step 6: Final answer
    x = 240,612.88

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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.