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Finding the Fourth Proportional to 346,141.76, 477,676.32 and 187,165.76

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Solution

The fourth proportional to 346,141.76, 477,676.32 and 187,165.76 is: 258,289.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,141.76 : 477,676.32 = 187,165.76 : x
  2. Step 2: Convert to fraction form
    346,141.76/477,676.32 = 187,165.76/x
  3. Step 3: Cross multiply
    346,141.76x = 477,676.32 × 187,165.76
  4. Step 4: Simplify right side
    346,141.76x = 89,404,651,466.80
  5. Step 5: Solve for x
    x = 89,404,651,466.80/346,141.76
  6. Step 6: Final answer
    x = 258,289.12

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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.