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Finding the Fourth Proportional to 369,612.20, 554,199.60 and 192,465.20

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Solution

The fourth proportional to 369,612.20, 554,199.60 and 192,465.20 is: 288,583.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,612.20 : 554,199.60 = 192,465.20 : x
  2. Step 2: Convert to fraction form
    369,612.20/554,199.60 = 192,465.20/x
  3. Step 3: Cross multiply
    369,612.20x = 554,199.60 × 192,465.20
  4. Step 4: Simplify right side
    369,612.20x = 106,664,136,853.92
  5. Step 5: Solve for x
    x = 106,664,136,853.92/369,612.20
  6. Step 6: Final answer
    x = 288,583.92

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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.