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Finding the Fourth Proportional to 588,235.07, 811,697.64 and 330,078.21

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Solution

The fourth proportional to 588,235.07, 811,697.64 and 330,078.21 is: 455,470.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    588,235.07 : 811,697.64 = 330,078.21 : x
  2. Step 2: Convert to fraction form
    588,235.07/811,697.64 = 330,078.21/x
  3. Step 3: Cross multiply
    588,235.07x = 811,697.64 × 330,078.21
  4. Step 4: Simplify right side
    588,235.07x = 267,923,704,072.42
  5. Step 5: Solve for x
    x = 267,923,704,072.42/588,235.07
  6. Step 6: Final answer
    x = 455,470.47

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Double scale
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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.