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Finding the Fourth Proportional to 475,621.65, 656,363.25 and 271,699.56

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Solution

The fourth proportional to 475,621.65, 656,363.25 and 271,699.56 is: 374,948.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,621.65 : 656,363.25 = 271,699.56 : x
  2. Step 2: Convert to fraction form
    475,621.65/656,363.25 = 271,699.56/x
  3. Step 3: Cross multiply
    475,621.65x = 656,363.25 × 271,699.56
  4. Step 4: Simplify right side
    475,621.65x = 178,333,606,225.17
  5. Step 5: Solve for x
    x = 178,333,606,225.17/475,621.65
  6. Step 6: Final answer
    x = 374,948.46

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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.