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Finding the Fourth Proportional to 528,302.24, 792,650.64 and 212,848.64

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Solution

The fourth proportional to 528,302.24, 792,650.64 and 212,848.64 is: 319,352.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,302.24 : 792,650.64 = 212,848.64 : x
  2. Step 2: Convert to fraction form
    528,302.24/792,650.64 = 212,848.64/x
  3. Step 3: Cross multiply
    528,302.24x = 792,650.64 × 212,848.64
  4. Step 4: Simplify right side
    528,302.24x = 168,714,610,719.13
  5. Step 5: Solve for x
    x = 168,714,610,719.13/528,302.24
  6. Step 6: Final answer
    x = 319,352.44

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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.