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Finding the Fourth Proportional to 346,461.25, 477,853.06 and 298,144.61

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Solution

The fourth proportional to 346,461.25, 477,853.06 and 298,144.61 is: 411,212.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,461.25 : 477,853.06 = 298,144.61 : x
  2. Step 2: Convert to fraction form
    346,461.25/477,853.06 = 298,144.61/x
  3. Step 3: Cross multiply
    346,461.25x = 477,853.06 × 298,144.61
  4. Step 4: Simplify right side
    346,461.25x = 142,469,315,142.71
  5. Step 5: Solve for x
    x = 142,469,315,142.71/346,461.25
  6. Step 6: Final answer
    x = 411,212.85

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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.