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Finding the Fourth Proportional to 483,816.95, 725,038.19 and 356,455.79

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Solution

The fourth proportional to 483,816.95, 725,038.19 and 356,455.79 is: 534,177.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,816.95 : 725,038.19 = 356,455.79 : x
  2. Step 2: Convert to fraction form
    483,816.95/725,038.19 = 356,455.79/x
  3. Step 3: Cross multiply
    483,816.95x = 725,038.19 × 356,455.79
  4. Step 4: Simplify right side
    483,816.95x = 258,444,059,444.75
  5. Step 5: Solve for x
    x = 258,444,059,444.75/483,816.95
  6. Step 6: Final answer
    x = 534,177.36

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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.