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Finding the Fourth Proportional to 483,386.72, 725,240.01 and 258,697.08

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Solution

The fourth proportional to 483,386.72, 725,240.01 and 258,697.08 is: 388,131.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,386.72 : 725,240.01 = 258,697.08 : x
  2. Step 2: Convert to fraction form
    483,386.72/725,240.01 = 258,697.08/x
  3. Step 3: Cross multiply
    483,386.72x = 725,240.01 × 258,697.08
  4. Step 4: Simplify right side
    483,386.72x = 187,617,472,886.17
  5. Step 5: Solve for x
    x = 187,617,472,886.17/483,386.72
  6. Step 6: Final answer
    x = 388,131.21

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.