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Finding the Fourth Proportional to 528,247.04, 792,362.24 and 212,695.68

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Solution

The fourth proportional to 528,247.04, 792,362.24 and 212,695.68 is: 319,040.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,247.04 : 792,362.24 = 212,695.68 : x
  2. Step 2: Convert to fraction form
    528,247.04/792,362.24 = 212,695.68/x
  3. Step 3: Cross multiply
    528,247.04x = 792,362.24 × 212,695.68
  4. Step 4: Simplify right side
    528,247.04x = 168,532,025,443.12
  5. Step 5: Solve for x
    x = 168,532,025,443.12/528,247.04
  6. Step 6: Final answer
    x = 319,040.17

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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.