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Finding the Fourth Proportional to 398,574.60, 597,449.88 and 185,168.40

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Solution

The fourth proportional to 398,574.60, 597,449.88 and 185,168.40 is: 277,561.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,574.60 : 597,449.88 = 185,168.40 : x
  2. Step 2: Convert to fraction form
    398,574.60/597,449.88 = 185,168.40/x
  3. Step 3: Cross multiply
    398,574.60x = 597,449.88 × 185,168.40
  4. Step 4: Simplify right side
    398,574.60x = 110,628,837,433.95
  5. Step 5: Solve for x
    x = 110,628,837,433.95/398,574.60
  6. Step 6: Final answer
    x = 277,561.18

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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.