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Finding the Fourth Proportional to 624,607.18, 861,745.98 and 406,716.37

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Solution

The fourth proportional to 624,607.18, 861,745.98 and 406,716.37 is: 561,130.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,607.18 : 861,745.98 = 406,716.37 : x
  2. Step 2: Convert to fraction form
    624,607.18/861,745.98 = 406,716.37/x
  3. Step 3: Cross multiply
    624,607.18x = 861,745.98 × 406,716.37
  4. Step 4: Simplify right side
    624,607.18x = 350,486,196,847.69
  5. Step 5: Solve for x
    x = 350,486,196,847.69/624,607.18
  6. Step 6: Final answer
    x = 561,130.59

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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.