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Finding the Fourth Proportional to 679,130.25, 937,203.39 and 377,324.25

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Solution

The fourth proportional to 679,130.25, 937,203.39 and 377,324.25 is: 520,709.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,130.25 : 937,203.39 = 377,324.25 : x
  2. Step 2: Convert to fraction form
    679,130.25/937,203.39 = 377,324.25/x
  3. Step 3: Cross multiply
    679,130.25x = 937,203.39 × 377,324.25
  4. Step 4: Simplify right side
    679,130.25x = 353,629,566,229.21
  5. Step 5: Solve for x
    x = 353,629,566,229.21/679,130.25
  6. Step 6: Final answer
    x = 520,709.49

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Double scale
Find fourth proportional to 679,131.25, 937,204.77 and 377,325.25
Similar ratio
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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.