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Finding the Fourth Proportional to 876,481.92, 1,209,885.12 and 514,224

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Solution

The fourth proportional to 876,481.92, 1,209,885.12 and 514,224 is: 709,828.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,481.92 : 1,209,885.12 = 514,224 : x
  2. Step 2: Convert to fraction form
    876,481.92/1,209,885.12 = 514,224/x
  3. Step 3: Cross multiply
    876,481.92x = 1,209,885.12 × 514,224
  4. Step 4: Simplify right side
    876,481.92x = 622,151,965,946.88
  5. Step 5: Solve for x
    x = 622,151,965,946.88/876,481.92
  6. Step 6: Final answer
    x = 709,828.64

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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.