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Finding the Fourth Proportional to 303,363.90, 418,725.45 and 176,080.50

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Solution

The fourth proportional to 303,363.90, 418,725.45 and 176,080.50 is: 243,039.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,363.90 : 418,725.45 = 176,080.50 : x
  2. Step 2: Convert to fraction form
    303,363.90/418,725.45 = 176,080.50/x
  3. Step 3: Cross multiply
    303,363.90x = 418,725.45 × 176,080.50
  4. Step 4: Simplify right side
    303,363.90x = 73,729,386,598.73
  5. Step 5: Solve for x
    x = 73,729,386,598.73/303,363.90
  6. Step 6: Final answer
    x = 243,039.42

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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.