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Finding the Fourth Proportional to 368,248.53, 549,684.44 and 315,993.81

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Solution

The fourth proportional to 368,248.53, 549,684.44 and 315,993.81 is: 471,683.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,248.53 : 549,684.44 = 315,993.81 : x
  2. Step 2: Convert to fraction form
    368,248.53/549,684.44 = 315,993.81/x
  3. Step 3: Cross multiply
    368,248.53x = 549,684.44 × 315,993.81
  4. Step 4: Simplify right side
    368,248.53x = 173,696,881,283.30
  5. Step 5: Solve for x
    x = 173,696,881,283.30/368,248.53
  6. Step 6: Final answer
    x = 471,683.84

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.