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Finding the Fourth Proportional to 880,817.70, 1,235,633.10 and 880,817.70

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Solution

The fourth proportional to 880,817.70, 1,235,633.10 and 880,817.70 is: 1,235,633.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    880,817.70 : 1,235,633.10 = 880,817.70 : x
  2. Step 2: Convert to fraction form
    880,817.70/1,235,633.10 = 880,817.70/x
  3. Step 3: Cross multiply
    880,817.70x = 1,235,633.10 × 880,817.70
  4. Step 4: Simplify right side
    880,817.70x = 1,088,367,505,185.87
  5. Step 5: Solve for x
    x = 1,088,367,505,185.87/880,817.70
  6. Step 6: Final answer
    x = 1,235,633.10

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Half scale
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Double scale
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Similar ratio
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1.5x scale

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.