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Finding the Fourth Proportional to 819,063.76, 1,130,884.32 and 574,568.32

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Solution

The fourth proportional to 819,063.76, 1,130,884.32 and 574,568.32 is: 793,308.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,063.76 : 1,130,884.32 = 574,568.32 : x
  2. Step 2: Convert to fraction form
    819,063.76/1,130,884.32 = 574,568.32/x
  3. Step 3: Cross multiply
    819,063.76x = 1,130,884.32 × 574,568.32
  4. Step 4: Simplify right side
    819,063.76x = 649,770,303,856.74
  5. Step 5: Solve for x
    x = 649,770,303,856.74/819,063.76
  6. Step 6: Final answer
    x = 793,308.57

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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.