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Finding the Fourth Proportional to 640,410.48, 883,194.33 and 531,342.12

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Solution

The fourth proportional to 640,410.48, 883,194.33 and 531,342.12 is: 732,777.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    640,410.48 : 883,194.33 = 531,342.12 : x
  2. Step 2: Convert to fraction form
    640,410.48/883,194.33 = 531,342.12/x
  3. Step 3: Cross multiply
    640,410.48x = 883,194.33 × 531,342.12
  4. Step 4: Simplify right side
    640,410.48x = 469,278,347,674.18
  5. Step 5: Solve for x
    x = 469,278,347,674.18/640,410.48
  6. Step 6: Final answer
    x = 732,777.43

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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.