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Finding the Fourth Proportional to 316,332.76, 436,550.16 and 180,387.22

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Solution

The fourth proportional to 316,332.76, 436,550.16 and 180,387.22 is: 248,940.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,332.76 : 436,550.16 = 180,387.22 : x
  2. Step 2: Convert to fraction form
    316,332.76/436,550.16 = 180,387.22/x
  3. Step 3: Cross multiply
    316,332.76x = 436,550.16 × 180,387.22
  4. Step 4: Simplify right side
    316,332.76x = 78,748,069,752.96
  5. Step 5: Solve for x
    x = 78,748,069,752.96/316,332.76
  6. Step 6: Final answer
    x = 248,940.61

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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.