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Finding the Fourth Proportional to 1,332,598.61, 1,838,986.40 and 751,945.03

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Solution

The fourth proportional to 1,332,598.61, 1,838,986.40 and 751,945.03 is: 1,037,684.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,332,598.61 : 1,838,986.40 = 751,945.03 : x
  2. Step 2: Convert to fraction form
    1,332,598.61/1,838,986.40 = 751,945.03/x
  3. Step 3: Cross multiply
    1,332,598.61x = 1,838,986.40 × 751,945.03
  4. Step 4: Simplify right side
    1,332,598.61x = 1,382,816,680,999.99
  5. Step 5: Solve for x
    x = 1,382,816,680,999.99/1,332,598.61
  6. Step 6: Final answer
    x = 1,037,684.32

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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.