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Finding the Fourth Proportional to 383,006.61, 527,407.88 and 374,509.71

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Solution

The fourth proportional to 383,006.61, 527,407.88 and 374,509.71 is: 515,707.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,006.61 : 527,407.88 = 374,509.71 : x
  2. Step 2: Convert to fraction form
    383,006.61/527,407.88 = 374,509.71/x
  3. Step 3: Cross multiply
    383,006.61x = 527,407.88 × 374,509.71
  4. Step 4: Simplify right side
    383,006.61x = 197,519,370,317.97
  5. Step 5: Solve for x
    x = 197,519,370,317.97/383,006.61
  6. Step 6: Final answer
    x = 515,707.47

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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.