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Finding the Fourth Proportional to 650,630.83, 898,207.58 and 405,688.20

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Solution

The fourth proportional to 650,630.83, 898,207.58 and 405,688.20 is: 560,059.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    650,630.83 : 898,207.58 = 405,688.20 : x
  2. Step 2: Convert to fraction form
    650,630.83/898,207.58 = 405,688.20/x
  3. Step 3: Cross multiply
    650,630.83x = 898,207.58 × 405,688.20
  4. Step 4: Simplify right side
    650,630.83x = 364,392,214,002.50
  5. Step 5: Solve for x
    x = 364,392,214,002.50/650,630.83
  6. Step 6: Final answer
    x = 560,059.86

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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.