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Finding the Fourth Proportional to 528,442.99, 792,327.32 and 348,320.45

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Solution

The fourth proportional to 528,442.99, 792,327.32 and 348,320.45 is: 522,258.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,442.99 : 792,327.32 = 348,320.45 : x
  2. Step 2: Convert to fraction form
    528,442.99/792,327.32 = 348,320.45/x
  3. Step 3: Cross multiply
    528,442.99x = 792,327.32 × 348,320.45
  4. Step 4: Simplify right side
    528,442.99x = 275,983,810,195.11
  5. Step 5: Solve for x
    x = 275,983,810,195.11/528,442.99
  6. Step 6: Final answer
    x = 522,258.44

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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.