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Finding the Fourth Proportional to 528,461.73, 792,355.43 and 348,339.21

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Solution

The fourth proportional to 528,461.73, 792,355.43 and 348,339.21 is: 522,286.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,461.73 : 792,355.43 = 348,339.21 : x
  2. Step 2: Convert to fraction form
    528,461.73/792,355.43 = 348,339.21/x
  3. Step 3: Cross multiply
    528,461.73x = 792,355.43 × 348,339.21
  4. Step 4: Simplify right side
    528,461.73x = 276,008,462,783.71
  5. Step 5: Solve for x
    x = 276,008,462,783.71/528,461.73
  6. Step 6: Final answer
    x = 522,286.57

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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.