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Finding the Fourth Proportional to 292,275.20, 437,635.20 and 186,521.60

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Solution

The fourth proportional to 292,275.20, 437,635.20 and 186,521.60 is: 279,286.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,275.20 : 437,635.20 = 186,521.60 : x
  2. Step 2: Convert to fraction form
    292,275.20/437,635.20 = 186,521.60/x
  3. Step 3: Cross multiply
    292,275.20x = 437,635.20 × 186,521.60
  4. Step 4: Simplify right side
    292,275.20x = 81,628,417,720.32
  5. Step 5: Solve for x
    x = 81,628,417,720.32/292,275.20
  6. Step 6: Final answer
    x = 279,286.16

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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.