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Finding the Fourth Proportional to 713,667.72, 1,070,503.44 and 240,685.32

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Solution

The fourth proportional to 713,667.72, 1,070,503.44 and 240,685.32 is: 361,028.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    713,667.72 : 1,070,503.44 = 240,685.32 : x
  2. Step 2: Convert to fraction form
    713,667.72/1,070,503.44 = 240,685.32/x
  3. Step 3: Cross multiply
    713,667.72x = 1,070,503.44 × 240,685.32
  4. Step 4: Simplify right side
    713,667.72x = 257,654,463,017.50
  5. Step 5: Solve for x
    x = 257,654,463,017.50/713,667.72
  6. Step 6: Final answer
    x = 361,028.61

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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.