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Finding the Fourth Proportional to 341,749.60, 512,624.40 and 92,431.60

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Solution

The fourth proportional to 341,749.60, 512,624.40 and 92,431.60 is: 138,647.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,749.60 : 512,624.40 = 92,431.60 : x
  2. Step 2: Convert to fraction form
    341,749.60/512,624.40 = 92,431.60/x
  3. Step 3: Cross multiply
    341,749.60x = 512,624.40 × 92,431.60
  4. Step 4: Simplify right side
    341,749.60x = 47,382,693,491.04
  5. Step 5: Solve for x
    x = 47,382,693,491.04/341,749.60
  6. Step 6: Final answer
    x = 138,647.40

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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.