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Finding the Fourth Proportional to 572,521.52, 788,779.92 and 443,014.64

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Solution

The fourth proportional to 572,521.52, 788,779.92 and 443,014.64 is: 610,354.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,521.52 : 788,779.92 = 443,014.64 : x
  2. Step 2: Convert to fraction form
    572,521.52/788,779.92 = 443,014.64/x
  3. Step 3: Cross multiply
    572,521.52x = 788,779.92 × 443,014.64
  4. Step 4: Simplify right side
    572,521.52x = 349,441,052,298.03
  5. Step 5: Solve for x
    x = 349,441,052,298.03/572,521.52
  6. Step 6: Final answer
    x = 610,354.44

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.