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Finding the Fourth Proportional to 364,060.80, 546,091.20 and 287,953.20

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Solution

The fourth proportional to 364,060.80, 546,091.20 and 287,953.20 is: 431,929.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    364,060.80 : 546,091.20 = 287,953.20 : x
  2. Step 2: Convert to fraction form
    364,060.80/546,091.20 = 287,953.20/x
  3. Step 3: Cross multiply
    364,060.80x = 546,091.20 × 287,953.20
  4. Step 4: Simplify right side
    364,060.80x = 157,248,708,531.84
  5. Step 5: Solve for x
    x = 157,248,708,531.84/364,060.80
  6. Step 6: Final answer
    x = 431,929.80

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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.