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Finding the Fourth Proportional to 508,428.59, 701,627.94 and 282,074.09

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Solution

The fourth proportional to 508,428.59, 701,627.94 and 282,074.09 is: 389,260.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,428.59 : 701,627.94 = 282,074.09 : x
  2. Step 2: Convert to fraction form
    508,428.59/701,627.94 = 282,074.09/x
  3. Step 3: Cross multiply
    508,428.59x = 701,627.94 × 282,074.09
  4. Step 4: Simplify right side
    508,428.59x = 197,911,059,185.94
  5. Step 5: Solve for x
    x = 197,911,059,185.94/508,428.59
  6. Step 6: Final answer
    x = 389,260.29

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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.