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Finding the Fourth Proportional to 367,276.80, 550,915.20 and 307,790.40

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Solution

The fourth proportional to 367,276.80, 550,915.20 and 307,790.40 is: 461,685.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,276.80 : 550,915.20 = 307,790.40 : x
  2. Step 2: Convert to fraction form
    367,276.80/550,915.20 = 307,790.40/x
  3. Step 3: Cross multiply
    367,276.80x = 550,915.20 × 307,790.40
  4. Step 4: Simplify right side
    367,276.80x = 169,566,409,774.08
  5. Step 5: Solve for x
    x = 169,566,409,774.08/367,276.80
  6. Step 6: Final answer
    x = 461,685.60

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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.