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Finding the Fourth Proportional to 501,667.09, 692,103.53 and 286,691.83

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Solution

The fourth proportional to 501,667.09, 692,103.53 and 286,691.83 is: 395,522.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,667.09 : 692,103.53 = 286,691.83 : x
  2. Step 2: Convert to fraction form
    501,667.09/692,103.53 = 286,691.83/x
  3. Step 3: Cross multiply
    501,667.09x = 692,103.53 × 286,691.83
  4. Step 4: Simplify right side
    501,667.09x = 198,420,427,861.96
  5. Step 5: Solve for x
    x = 198,420,427,861.96/501,667.09
  6. Step 6: Final answer
    x = 395,522.11

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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.