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Finding the Fourth Proportional to 984,695.64, 1,358,880 and 531,986.64

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Solution

The fourth proportional to 984,695.64, 1,358,880 and 531,986.64 is: 734,141.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    984,695.64 : 1,358,880 = 531,986.64 : x
  2. Step 2: Convert to fraction form
    984,695.64/1,358,880 = 531,986.64/x
  3. Step 3: Cross multiply
    984,695.64x = 1,358,880 × 531,986.64
  4. Step 4: Simplify right side
    984,695.64x = 722,906,005,363.20
  5. Step 5: Solve for x
    x = 722,906,005,363.20/984,695.64
  6. Step 6: Final answer
    x = 734,141.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.