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Finding the Fourth Proportional to 624,186.90, 936,280.35 and 384,491.70

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Solution

The fourth proportional to 624,186.90, 936,280.35 and 384,491.70 is: 576,737.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,186.90 : 936,280.35 = 384,491.70 : x
  2. Step 2: Convert to fraction form
    624,186.90/936,280.35 = 384,491.70/x
  3. Step 3: Cross multiply
    624,186.90x = 936,280.35 × 384,491.70
  4. Step 4: Simplify right side
    624,186.90x = 359,992,023,448.10
  5. Step 5: Solve for x
    x = 359,992,023,448.10/624,186.90
  6. Step 6: Final answer
    x = 576,737.55

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Similar ratio
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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.