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Finding the Fourth Proportional to 374,379.40, 561,569.10 and 370,442.80

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Solution

The fourth proportional to 374,379.40, 561,569.10 and 370,442.80 is: 555,664.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,379.40 : 561,569.10 = 370,442.80 : x
  2. Step 2: Convert to fraction form
    374,379.40/561,569.10 = 370,442.80/x
  3. Step 3: Cross multiply
    374,379.40x = 561,569.10 × 370,442.80
  4. Step 4: Simplify right side
    374,379.40x = 208,029,229,797.48
  5. Step 5: Solve for x
    x = 208,029,229,797.48/374,379.40
  6. Step 6: Final answer
    x = 555,664.20

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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.