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Finding the Fourth Proportional to 506,779.52, 699,374.40 and 327,931.52

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Solution

The fourth proportional to 506,779.52, 699,374.40 and 327,931.52 is: 452,557.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    506,779.52 : 699,374.40 = 327,931.52 : x
  2. Step 2: Convert to fraction form
    506,779.52/699,374.40 = 327,931.52/x
  3. Step 3: Cross multiply
    506,779.52x = 699,374.40 × 327,931.52
  4. Step 4: Simplify right side
    506,779.52x = 229,346,910,041.09
  5. Step 5: Solve for x
    x = 229,346,910,041.09/506,779.52
  6. Step 6: Final answer
    x = 452,557.57

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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.