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Finding the Fourth Proportional to 369,640.60, 554,331.30 and 192,088.60

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Solution

The fourth proportional to 369,640.60, 554,331.30 and 192,088.60 is: 288,065.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,640.60 : 554,331.30 = 192,088.60 : x
  2. Step 2: Convert to fraction form
    369,640.60/554,331.30 = 192,088.60/x
  3. Step 3: Cross multiply
    369,640.60x = 554,331.30 × 192,088.60
  4. Step 4: Simplify right side
    369,640.60x = 106,480,723,353.18
  5. Step 5: Solve for x
    x = 106,480,723,353.18/369,640.60
  6. Step 6: Final answer
    x = 288,065.55

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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.