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Finding the Fourth Proportional to 587,416.40, 879,812.40 and 482,440.40

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Solution

The fourth proportional to 587,416.40, 879,812.40 and 482,440.40 is: 722,582.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,416.40 : 879,812.40 = 482,440.40 : x
  2. Step 2: Convert to fraction form
    587,416.40/879,812.40 = 482,440.40/x
  3. Step 3: Cross multiply
    587,416.40x = 879,812.40 × 482,440.40
  4. Step 4: Simplify right side
    587,416.40x = 424,457,046,180.96
  5. Step 5: Solve for x
    x = 424,457,046,180.96/587,416.40
  6. Step 6: Final answer
    x = 722,582.90

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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.