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Finding the Fourth Proportional to 698,346.56, 963,691.08 and 426,869

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Solution

The fourth proportional to 698,346.56, 963,691.08 and 426,869 is: 589,062.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    698,346.56 : 963,691.08 = 426,869 : x
  2. Step 2: Convert to fraction form
    698,346.56/963,691.08 = 426,869/x
  3. Step 3: Cross multiply
    698,346.56x = 963,691.08 × 426,869
  4. Step 4: Simplify right side
    698,346.56x = 411,369,847,628.52
  5. Step 5: Solve for x
    x = 411,369,847,628.52/698,346.56
  6. Step 6: Final answer
    x = 589,062.61

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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.