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Finding the Fourth Proportional to 899,194, 1,240,923.36 and 517,220.32

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Solution

The fourth proportional to 899,194, 1,240,923.36 and 517,220.32 is: 713,784.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    899,194 : 1,240,923.36 = 517,220.32 : x
  2. Step 2: Convert to fraction form
    899,194/1,240,923.36 = 517,220.32/x
  3. Step 3: Cross multiply
    899,194x = 1,240,923.36 × 517,220.32
  4. Step 4: Simplify right side
    899,194x = 641,830,777,354.68
  5. Step 5: Solve for x
    x = 641,830,777,354.68/899,194
  6. Step 6: Final answer
    x = 713,784.54

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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.