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Finding the Fourth Proportional to 545,779.24, 753,198.60 and 304,061.68

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Solution

The fourth proportional to 545,779.24, 753,198.60 and 304,061.68 is: 419,618.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,779.24 : 753,198.60 = 304,061.68 : x
  2. Step 2: Convert to fraction form
    545,779.24/753,198.60 = 304,061.68/x
  3. Step 3: Cross multiply
    545,779.24x = 753,198.60 × 304,061.68
  4. Step 4: Simplify right side
    545,779.24x = 229,018,831,689.65
  5. Step 5: Solve for x
    x = 229,018,831,689.65/545,779.24
  6. Step 6: Final answer
    x = 419,618.07

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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.