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Finding the Fourth Proportional to 675,633.62, 932,360 and 369,708.78

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Solution

The fourth proportional to 675,633.62, 932,360 and 369,708.78 is: 510,190.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    675,633.62 : 932,360 = 369,708.78 : x
  2. Step 2: Convert to fraction form
    675,633.62/932,360 = 369,708.78/x
  3. Step 3: Cross multiply
    675,633.62x = 932,360 × 369,708.78
  4. Step 4: Simplify right side
    675,633.62x = 344,701,678,120.80
  5. Step 5: Solve for x
    x = 344,701,678,120.80/675,633.62
  6. Step 6: Final answer
    x = 510,190.24

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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.