Home / 527,490.45-727,935.96-285,779.16

Finding the Fourth Proportional to 527,490.45, 727,935.96 and 285,779.16

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Solution

The fourth proportional to 527,490.45, 727,935.96 and 285,779.16 is: 394,374.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,490.45 : 727,935.96 = 285,779.16 : x
  2. Step 2: Convert to fraction form
    527,490.45/727,935.96 = 285,779.16/x
  3. Step 3: Cross multiply
    527,490.45x = 727,935.96 × 285,779.16
  4. Step 4: Simplify right side
    527,490.45x = 208,028,927,182.59
  5. Step 5: Solve for x
    x = 208,028,927,182.59/527,490.45
  6. Step 6: Final answer
    x = 394,374.77

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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.