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Finding the Fourth Proportional to 698,973.92, 964,453.92 and 393,010.64

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Solution

The fourth proportional to 698,973.92, 964,453.92 and 393,010.64 is: 542,281.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    698,973.92 : 964,453.92 = 393,010.64 : x
  2. Step 2: Convert to fraction form
    698,973.92/964,453.92 = 393,010.64/x
  3. Step 3: Cross multiply
    698,973.92x = 964,453.92 × 393,010.64
  4. Step 4: Simplify right side
    698,973.92x = 379,040,652,349.71
  5. Step 5: Solve for x
    x = 379,040,652,349.71/698,973.92
  6. Step 6: Final answer
    x = 542,281.54

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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.