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Finding the Fourth Proportional to 466,785.63, 644,176.94 and 285,494.27

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Solution

The fourth proportional to 466,785.63, 644,176.94 and 285,494.27 is: 393,989.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    466,785.63 : 644,176.94 = 285,494.27 : x
  2. Step 2: Convert to fraction form
    466,785.63/644,176.94 = 285,494.27/x
  3. Step 3: Cross multiply
    466,785.63x = 644,176.94 × 285,494.27
  4. Step 4: Simplify right side
    466,785.63x = 183,908,820,587.78
  5. Step 5: Solve for x
    x = 183,908,820,587.78/466,785.63
  6. Step 6: Final answer
    x = 393,989.89

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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.