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Finding the Fourth Proportional to 587,208.40, 880,812.60 and 306,811.60

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Solution

The fourth proportional to 587,208.40, 880,812.60 and 306,811.60 is: 460,217.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,208.40 : 880,812.60 = 306,811.60 : x
  2. Step 2: Convert to fraction form
    587,208.40/880,812.60 = 306,811.60/x
  3. Step 3: Cross multiply
    587,208.40x = 880,812.60 × 306,811.60
  4. Step 4: Simplify right side
    587,208.40x = 270,243,523,106.16
  5. Step 5: Solve for x
    x = 270,243,523,106.16/587,208.40
  6. Step 6: Final answer
    x = 460,217.40

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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.