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Finding the Fourth Proportional to 382,652.96, 528,061.08 and 212,887.04

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Solution

The fourth proportional to 382,652.96, 528,061.08 and 212,887.04 is: 293,784.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,652.96 : 528,061.08 = 212,887.04 : x
  2. Step 2: Convert to fraction form
    382,652.96/528,061.08 = 212,887.04/x
  3. Step 3: Cross multiply
    382,652.96x = 528,061.08 × 212,887.04
  4. Step 4: Simplify right side
    382,652.96x = 112,417,360,260.40
  5. Step 5: Solve for x
    x = 112,417,360,260.40/382,652.96
  6. Step 6: Final answer
    x = 293,784.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.