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Finding the Fourth Proportional to 351,683.60, 485,322.72 and 190,542.76

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Solution

The fourth proportional to 351,683.60, 485,322.72 and 190,542.76 is: 262,948.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,683.60 : 485,322.72 = 190,542.76 : x
  2. Step 2: Convert to fraction form
    351,683.60/485,322.72 = 190,542.76/x
  3. Step 3: Cross multiply
    351,683.60x = 485,322.72 × 190,542.76
  4. Step 4: Simplify right side
    351,683.60x = 92,474,730,559.51
  5. Step 5: Solve for x
    x = 92,474,730,559.51/351,683.60
  6. Step 6: Final answer
    x = 262,948.66

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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.