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Finding the Fourth Proportional to 374,969.52, 517,396.32 and 213,827.76

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Solution

The fourth proportional to 374,969.52, 517,396.32 and 213,827.76 is: 295,047.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,969.52 : 517,396.32 = 213,827.76 : x
  2. Step 2: Convert to fraction form
    374,969.52/517,396.32 = 213,827.76/x
  3. Step 3: Cross multiply
    374,969.52x = 517,396.32 × 213,827.76
  4. Step 4: Simplify right side
    374,969.52x = 110,633,696,137.84
  5. Step 5: Solve for x
    x = 110,633,696,137.84/374,969.52
  6. Step 6: Final answer
    x = 295,047.17

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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.