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Finding the Fourth Proportional to 343,549.04, 515,476.90 and 133,203.38

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Solution

The fourth proportional to 343,549.04, 515,476.90 and 133,203.38 is: 199,864.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,549.04 : 515,476.90 = 133,203.38 : x
  2. Step 2: Convert to fraction form
    343,549.04/515,476.90 = 133,203.38/x
  3. Step 3: Cross multiply
    343,549.04x = 515,476.90 × 133,203.38
  4. Step 4: Simplify right side
    343,549.04x = 68,663,265,391.92
  5. Step 5: Solve for x
    x = 68,663,265,391.92/343,549.04
  6. Step 6: Final answer
    x = 199,864.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.