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Finding the Fourth Proportional to 578,548.12, 864,303.93 and 374,481.88

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Solution

The fourth proportional to 578,548.12, 864,303.93 and 374,481.88 is: 559,445.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,548.12 : 864,303.93 = 374,481.88 : x
  2. Step 2: Convert to fraction form
    578,548.12/864,303.93 = 374,481.88/x
  3. Step 3: Cross multiply
    578,548.12x = 864,303.93 × 374,481.88
  4. Step 4: Simplify right side
    578,548.12x = 323,666,160,597.79
  5. Step 5: Solve for x
    x = 323,666,160,597.79/578,548.12
  6. Step 6: Final answer
    x = 559,445.54

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.