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Finding the Fourth Proportional to 851,981.10, 1,280,596.05 and 804,741.90

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Solution

The fourth proportional to 851,981.10, 1,280,596.05 and 804,741.90 is: 1,209,591.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,981.10 : 1,280,596.05 = 804,741.90 : x
  2. Step 2: Convert to fraction form
    851,981.10/1,280,596.05 = 804,741.90/x
  3. Step 3: Cross multiply
    851,981.10x = 1,280,596.05 × 804,741.90
  4. Step 4: Simplify right side
    851,981.10x = 1,030,549,298,409.50
  5. Step 5: Solve for x
    x = 1,030,549,298,409.50/851,981.10
  6. Step 6: Final answer
    x = 1,209,591.74

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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.