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Finding the Fourth Proportional to 286,397.77, 395,184.99 and 165,515.71

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Solution

The fourth proportional to 286,397.77, 395,184.99 and 165,515.71 is: 228,386.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,397.77 : 395,184.99 = 165,515.71 : x
  2. Step 2: Convert to fraction form
    286,397.77/395,184.99 = 165,515.71/x
  3. Step 3: Cross multiply
    286,397.77x = 395,184.99 × 165,515.71
  4. Step 4: Simplify right side
    286,397.77x = 65,409,323,630.78
  5. Step 5: Solve for x
    x = 65,409,323,630.78/286,397.77
  6. Step 6: Final answer
    x = 228,386.29

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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.