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Finding the Fourth Proportional to 922,806.45, 1,288,779.75 and 922,806.45

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Solution

The fourth proportional to 922,806.45, 1,288,779.75 and 922,806.45 is: 1,288,779.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    922,806.45 : 1,288,779.75 = 922,806.45 : x
  2. Step 2: Convert to fraction form
    922,806.45/1,288,779.75 = 922,806.45/x
  3. Step 3: Cross multiply
    922,806.45x = 1,288,779.75 × 922,806.45
  4. Step 4: Simplify right side
    922,806.45x = 1,189,294,265,929.39
  5. Step 5: Solve for x
    x = 1,189,294,265,929.39/922,806.45
  6. Step 6: Final answer
    x = 1,288,779.75

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.