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Finding the Fourth Proportional to 483,407.60, 725,316.66 and 258,709.82

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Solution

The fourth proportional to 483,407.60, 725,316.66 and 258,709.82 is: 388,174.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,407.60 : 725,316.66 = 258,709.82 : x
  2. Step 2: Convert to fraction form
    483,407.60/725,316.66 = 258,709.82/x
  3. Step 3: Cross multiply
    483,407.60x = 725,316.66 × 258,709.82
  4. Step 4: Simplify right side
    483,407.60x = 187,646,538,925.02
  5. Step 5: Solve for x
    x = 187,646,538,925.02/483,407.60
  6. Step 6: Final answer
    x = 388,174.58

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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.