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Finding the Fourth Proportional to 386,951.04, 534,192.84 and 300,717.36

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Solution

The fourth proportional to 386,951.04, 534,192.84 and 300,717.36 is: 415,145.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,951.04 : 534,192.84 = 300,717.36 : x
  2. Step 2: Convert to fraction form
    386,951.04/534,192.84 = 300,717.36/x
  3. Step 3: Cross multiply
    386,951.04x = 534,192.84 × 300,717.36
  4. Step 4: Simplify right side
    386,951.04x = 160,641,060,575.70
  5. Step 5: Solve for x
    x = 160,641,060,575.70/386,951.04
  6. Step 6: Final answer
    x = 415,145.70

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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.