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Finding the Fourth Proportional to 302,948.78, 454,423.17 and 191,907.50

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Solution

The fourth proportional to 302,948.78, 454,423.17 and 191,907.50 is: 287,861.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,948.78 : 454,423.17 = 191,907.50 : x
  2. Step 2: Convert to fraction form
    302,948.78/454,423.17 = 191,907.50/x
  3. Step 3: Cross multiply
    302,948.78x = 454,423.17 × 191,907.50
  4. Step 4: Simplify right side
    302,948.78x = 87,207,214,496.78
  5. Step 5: Solve for x
    x = 87,207,214,496.78/302,948.78
  6. Step 6: Final answer
    x = 287,861.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.