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Finding the Fourth Proportional to 965,543.88, 1,332,314.54 and 578,268.54

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Solution

The fourth proportional to 965,543.88, 1,332,314.54 and 578,268.54 is: 797,929.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    965,543.88 : 1,332,314.54 = 578,268.54 : x
  2. Step 2: Convert to fraction form
    965,543.88/1,332,314.54 = 578,268.54/x
  3. Step 3: Cross multiply
    965,543.88x = 1,332,314.54 × 578,268.54
  4. Step 4: Simplify right side
    965,543.88x = 770,435,583,866.57
  5. Step 5: Solve for x
    x = 770,435,583,866.57/965,543.88
  6. Step 6: Final answer
    x = 797,929.13

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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.