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Finding the Fourth Proportional to 662,769.20, 896,138.10 and 662,769.20

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Solution

The fourth proportional to 662,769.20, 896,138.10 and 662,769.20 is: 896,138.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,769.20 : 896,138.10 = 662,769.20 : x
  2. Step 2: Convert to fraction form
    662,769.20/896,138.10 = 662,769.20/x
  3. Step 3: Cross multiply
    662,769.20x = 896,138.10 × 662,769.20
  4. Step 4: Simplify right side
    662,769.20x = 593,932,731,626.52
  5. Step 5: Solve for x
    x = 593,932,731,626.52/662,769.20
  6. Step 6: Final answer
    x = 896,138.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.