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Finding the Fourth Proportional to 296,830.04, 409,605.17 and 189,388.17

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Solution

The fourth proportional to 296,830.04, 409,605.17 and 189,388.17 is: 261,342.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,830.04 : 409,605.17 = 189,388.17 : x
  2. Step 2: Convert to fraction form
    296,830.04/409,605.17 = 189,388.17/x
  3. Step 3: Cross multiply
    296,830.04x = 409,605.17 × 189,388.17
  4. Step 4: Simplify right side
    296,830.04x = 77,574,372,621.90
  5. Step 5: Solve for x
    x = 77,574,372,621.90/296,830.04
  6. Step 6: Final answer
    x = 261,342.73

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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.