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Finding the Fourth Proportional to 374,437.60, 561,656.40 and 372,104.80

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Solution

The fourth proportional to 374,437.60, 561,656.40 and 372,104.80 is: 558,157.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,437.60 : 561,656.40 = 372,104.80 : x
  2. Step 2: Convert to fraction form
    374,437.60/561,656.40 = 372,104.80/x
  3. Step 3: Cross multiply
    374,437.60x = 561,656.40 × 372,104.80
  4. Step 4: Simplify right side
    374,437.60x = 208,995,042,390.72
  5. Step 5: Solve for x
    x = 208,995,042,390.72/374,437.60
  6. Step 6: Final answer
    x = 558,157.20

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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.