Home / 450,518.47-621,717.14-243,786.86

Finding the Fourth Proportional to 450,518.47, 621,717.14 and 243,786.86

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Solution

The fourth proportional to 450,518.47, 621,717.14 and 243,786.86 is: 336,426.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,518.47 : 621,717.14 = 243,786.86 : x
  2. Step 2: Convert to fraction form
    450,518.47/621,717.14 = 243,786.86/x
  3. Step 3: Cross multiply
    450,518.47x = 621,717.14 × 243,786.86
  4. Step 4: Simplify right side
    450,518.47x = 151,566,468,149.85
  5. Step 5: Solve for x
    x = 151,566,468,149.85/450,518.47
  6. Step 6: Final answer
    x = 336,426.76

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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.