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Finding the Fourth Proportional to 539,669.51, 744,745.05 and 297,952.55

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Solution

The fourth proportional to 539,669.51, 744,745.05 and 297,952.55 is: 411,175.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,669.51 : 744,745.05 = 297,952.55 : x
  2. Step 2: Convert to fraction form
    539,669.51/744,745.05 = 297,952.55/x
  3. Step 3: Cross multiply
    539,669.51x = 744,745.05 × 297,952.55
  4. Step 4: Simplify right side
    539,669.51x = 221,898,683,023.65
  5. Step 5: Solve for x
    x = 221,898,683,023.65/539,669.51
  6. Step 6: Final answer
    x = 411,175.14

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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.