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Finding the Fourth Proportional to 575,339.78, 861,732.83 and 372,282.98

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Solution

The fourth proportional to 575,339.78, 861,732.83 and 372,282.98 is: 557,598.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,339.78 : 861,732.83 = 372,282.98 : x
  2. Step 2: Convert to fraction form
    575,339.78/861,732.83 = 372,282.98/x
  3. Step 3: Cross multiply
    575,339.78x = 861,732.83 × 372,282.98
  4. Step 4: Simplify right side
    575,339.78x = 320,808,467,385.52
  5. Step 5: Solve for x
    x = 320,808,467,385.52/575,339.78
  6. Step 6: Final answer
    x = 557,598.28

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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.