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Finding the Fourth Proportional to 698,552.25, 964,002.11 and 380,600.25

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Solution

The fourth proportional to 698,552.25, 964,002.11 and 380,600.25 is: 525,228.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    698,552.25 : 964,002.11 = 380,600.25 : x
  2. Step 2: Convert to fraction form
    698,552.25/964,002.11 = 380,600.25/x
  3. Step 3: Cross multiply
    698,552.25x = 964,002.11 × 380,600.25
  4. Step 4: Simplify right side
    698,552.25x = 366,899,442,163.53
  5. Step 5: Solve for x
    x = 366,899,442,163.53/698,552.25
  6. Step 6: Final answer
    x = 525,228.35

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Double scale
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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.