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Finding the Fourth Proportional to 366,486.41, 549,708.54 and 217,671.95

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Solution

The fourth proportional to 366,486.41, 549,708.54 and 217,671.95 is: 326,495.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,486.41 : 549,708.54 = 217,671.95 : x
  2. Step 2: Convert to fraction form
    366,486.41/549,708.54 = 217,671.95/x
  3. Step 3: Cross multiply
    366,486.41x = 549,708.54 × 217,671.95
  4. Step 4: Simplify right side
    366,486.41x = 119,656,127,084.91
  5. Step 5: Solve for x
    x = 119,656,127,084.91/366,486.41
  6. Step 6: Final answer
    x = 326,495.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.