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Finding the Fourth Proportional to 693,490.56, 955,552.32 and 617,216.64

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Solution

The fourth proportional to 693,490.56, 955,552.32 and 617,216.64 is: 850,455.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,490.56 : 955,552.32 = 617,216.64 : x
  2. Step 2: Convert to fraction form
    693,490.56/955,552.32 = 617,216.64/x
  3. Step 3: Cross multiply
    693,490.56x = 955,552.32 × 617,216.64
  4. Step 4: Simplify right side
    693,490.56x = 589,782,792,294.61
  5. Step 5: Solve for x
    x = 589,782,792,294.61/693,490.56
  6. Step 6: Final answer
    x = 850,455.40

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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.