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Finding the Fourth Proportional to 528,464.73, 792,359.93 and 348,342.21

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Solution

The fourth proportional to 528,464.73, 792,359.93 and 348,342.21 is: 522,291.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,464.73 : 792,359.93 = 348,342.21 : x
  2. Step 2: Convert to fraction form
    528,464.73/792,359.93 = 348,342.21/x
  3. Step 3: Cross multiply
    528,464.73x = 792,359.93 × 348,342.21
  4. Step 4: Simplify right side
    528,464.73x = 276,012,407,389.93
  5. Step 5: Solve for x
    x = 276,012,407,389.93/528,464.73
  6. Step 6: Final answer
    x = 522,291.07

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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.