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Finding the Fourth Proportional to 739,815.40, 1,033,379.60 and 739,815.40

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Solution

The fourth proportional to 739,815.40, 1,033,379.60 and 739,815.40 is: 1,033,379.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,815.40 : 1,033,379.60 = 739,815.40 : x
  2. Step 2: Convert to fraction form
    739,815.40/1,033,379.60 = 739,815.40/x
  3. Step 3: Cross multiply
    739,815.40x = 1,033,379.60 × 739,815.40
  4. Step 4: Simplify right side
    739,815.40x = 764,510,142,125.84
  5. Step 5: Solve for x
    x = 764,510,142,125.84/739,815.40
  6. Step 6: Final answer
    x = 1,033,379.60

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Double scale
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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.