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Finding the Fourth Proportional to 440,191.20, 660,286.80 and 377,205.60

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Solution

The fourth proportional to 440,191.20, 660,286.80 and 377,205.60 is: 565,808.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,191.20 : 660,286.80 = 377,205.60 : x
  2. Step 2: Convert to fraction form
    440,191.20/660,286.80 = 377,205.60/x
  3. Step 3: Cross multiply
    440,191.20x = 660,286.80 × 377,205.60
  4. Step 4: Simplify right side
    440,191.20x = 249,063,878,566.08
  5. Step 5: Solve for x
    x = 249,063,878,566.08/440,191.20
  6. Step 6: Final answer
    x = 565,808.40

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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.