Home / 693,025.40-1,039,538.10-641,185.40

Finding the Fourth Proportional to 693,025.40, 1,039,538.10 and 641,185.40

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Solution

The fourth proportional to 693,025.40, 1,039,538.10 and 641,185.40 is: 961,778.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,025.40 : 1,039,538.10 = 641,185.40 : x
  2. Step 2: Convert to fraction form
    693,025.40/1,039,538.10 = 641,185.40/x
  3. Step 3: Cross multiply
    693,025.40x = 1,039,538.10 × 641,185.40
  4. Step 4: Simplify right side
    693,025.40x = 666,536,652,463.74
  5. Step 5: Solve for x
    x = 666,536,652,463.74/693,025.40
  6. Step 6: Final answer
    x = 961,778.10

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.