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Finding the Fourth Proportional to 302,861.40, 454,292.10 and 297,029.40

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Solution

The fourth proportional to 302,861.40, 454,292.10 and 297,029.40 is: 445,544.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,861.40 : 454,292.10 = 297,029.40 : x
  2. Step 2: Convert to fraction form
    302,861.40/454,292.10 = 297,029.40/x
  3. Step 3: Cross multiply
    302,861.40x = 454,292.10 × 297,029.40
  4. Step 4: Simplify right side
    302,861.40x = 134,938,109,887.74
  5. Step 5: Solve for x
    x = 134,938,109,887.74/302,861.40
  6. Step 6: Final answer
    x = 445,544.10

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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.