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Finding the Fourth Proportional to 382,628.84, 528,073.16 and 219,343.77

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Solution

The fourth proportional to 382,628.84, 528,073.16 and 219,343.77 is: 302,720.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,628.84 : 528,073.16 = 219,343.77 : x
  2. Step 2: Convert to fraction form
    382,628.84/528,073.16 = 219,343.77/x
  3. Step 3: Cross multiply
    382,628.84x = 528,073.16 × 219,343.77
  4. Step 4: Simplify right side
    382,628.84x = 115,829,556,653.49
  5. Step 5: Solve for x
    x = 115,829,556,653.49/382,628.84
  6. Step 6: Final answer
    x = 302,720.41

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1.5x scale

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.