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Finding the Fourth Proportional to 837,684.32, 1,156,702.48 and 776,900.84

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Solution

The fourth proportional to 837,684.32, 1,156,702.48 and 776,900.84 is: 1,072,770.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    837,684.32 : 1,156,702.48 = 776,900.84 : x
  2. Step 2: Convert to fraction form
    837,684.32/1,156,702.48 = 776,900.84/x
  3. Step 3: Cross multiply
    837,684.32x = 1,156,702.48 × 776,900.84
  4. Step 4: Simplify right side
    837,684.32x = 898,643,120,616.32
  5. Step 5: Solve for x
    x = 898,643,120,616.32/837,684.32
  6. Step 6: Final answer
    x = 1,072,770.62

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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.