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Finding the Fourth Proportional to 693,840.40, 970,132.40 and 693,840.40

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Solution

The fourth proportional to 693,840.40, 970,132.40 and 693,840.40 is: 970,132.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,840.40 : 970,132.40 = 693,840.40 : x
  2. Step 2: Convert to fraction form
    693,840.40/970,132.40 = 693,840.40/x
  3. Step 3: Cross multiply
    693,840.40x = 970,132.40 × 693,840.40
  4. Step 4: Simplify right side
    693,840.40x = 673,117,052,468.96
  5. Step 5: Solve for x
    x = 673,117,052,468.96/693,840.40
  6. Step 6: Final answer
    x = 970,132.40

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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.