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Finding the Fourth Proportional to 369,086.80, 553,630.20 and 362,088.40

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Solution

The fourth proportional to 369,086.80, 553,630.20 and 362,088.40 is: 543,132.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,086.80 : 553,630.20 = 362,088.40 : x
  2. Step 2: Convert to fraction form
    369,086.80/553,630.20 = 362,088.40/x
  3. Step 3: Cross multiply
    369,086.80x = 553,630.20 × 362,088.40
  4. Step 4: Simplify right side
    369,086.80x = 200,463,073,309.68
  5. Step 5: Solve for x
    x = 200,463,073,309.68/369,086.80
  6. Step 6: Final answer
    x = 543,132.60

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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.