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Finding the Fourth Proportional to 364,987.80, 547,306.74 and 187,403.40

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Solution

The fourth proportional to 364,987.80, 547,306.74 and 187,403.40 is: 281,015.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    364,987.80 : 547,306.74 = 187,403.40 : x
  2. Step 2: Convert to fraction form
    364,987.80/547,306.74 = 187,403.40/x
  3. Step 3: Cross multiply
    364,987.80x = 547,306.74 × 187,403.40
  4. Step 4: Simplify right side
    364,987.80x = 102,567,143,918.92
  5. Step 5: Solve for x
    x = 102,567,143,918.92/364,987.80
  6. Step 6: Final answer
    x = 281,015.27

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1.5x scale

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.