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Finding the Fourth Proportional to 772,826.80, 1,156,907.40 and 772,826.80

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Solution

The fourth proportional to 772,826.80, 1,156,907.40 and 772,826.80 is: 1,156,907.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,826.80 : 1,156,907.40 = 772,826.80 : x
  2. Step 2: Convert to fraction form
    772,826.80/1,156,907.40 = 772,826.80/x
  3. Step 3: Cross multiply
    772,826.80x = 1,156,907.40 × 772,826.80
  4. Step 4: Simplify right side
    772,826.80x = 894,089,043,838.32
  5. Step 5: Solve for x
    x = 894,089,043,838.32/772,826.80
  6. Step 6: Final answer
    x = 1,156,907.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.