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Finding the Fourth Proportional to 374,429.90, 561,644.85 and 360,433.10

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Solution

The fourth proportional to 374,429.90, 561,644.85 and 360,433.10 is: 540,649.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,429.90 : 561,644.85 = 360,433.10 : x
  2. Step 2: Convert to fraction form
    374,429.90/561,644.85 = 360,433.10/x
  3. Step 3: Cross multiply
    374,429.90x = 561,644.85 × 360,433.10
  4. Step 4: Simplify right side
    374,429.90x = 202,435,394,384.54
  5. Step 5: Solve for x
    x = 202,435,394,384.54/374,429.90
  6. Step 6: Final answer
    x = 540,649.65

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.