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Finding the Fourth Proportional to 364,085.20, 545,909.10 and 186,938.20

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Solution

The fourth proportional to 364,085.20, 545,909.10 and 186,938.20 is: 280,295.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    364,085.20 : 545,909.10 = 186,938.20 : x
  2. Step 2: Convert to fraction form
    364,085.20/545,909.10 = 186,938.20/x
  3. Step 3: Cross multiply
    364,085.20x = 545,909.10 × 186,938.20
  4. Step 4: Simplify right side
    364,085.20x = 102,051,264,517.62
  5. Step 5: Solve for x
    x = 102,051,264,517.62/364,085.20
  6. Step 6: Final answer
    x = 280,295.01

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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.