Home / 864,128.61-1,192,164.89-541,276.65

Finding the Fourth Proportional to 864,128.61, 1,192,164.89 and 541,276.65

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Solution

The fourth proportional to 864,128.61, 1,192,164.89 and 541,276.65 is: 746,753.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    864,128.61 : 1,192,164.89 = 541,276.65 : x
  2. Step 2: Convert to fraction form
    864,128.61/1,192,164.89 = 541,276.65/x
  3. Step 3: Cross multiply
    864,128.61x = 1,192,164.89 × 541,276.65
  4. Step 4: Simplify right side
    864,128.61x = 645,291,015,200.44
  5. Step 5: Solve for x
    x = 645,291,015,200.44/864,128.61
  6. Step 6: Final answer
    x = 746,753.44

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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.