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Finding the Fourth Proportional to 883,608.91, 1,219,348.32 and 540,019.60

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Solution

The fourth proportional to 883,608.91, 1,219,348.32 and 540,019.60 is: 745,207.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    883,608.91 : 1,219,348.32 = 540,019.60 : x
  2. Step 2: Convert to fraction form
    883,608.91/1,219,348.32 = 540,019.60/x
  3. Step 3: Cross multiply
    883,608.91x = 1,219,348.32 × 540,019.60
  4. Step 4: Simplify right side
    883,608.91x = 658,471,992,027.07
  5. Step 5: Solve for x
    x = 658,471,992,027.07/883,608.91
  6. Step 6: Final answer
    x = 745,207.51

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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.